Bump commonmarker from 0.23.7 to 0.23.9 in /docs (google#1821)

[//]: # (dependabot-start)
⚠️  **Dependabot is rebasing this PR** ⚠️ 

Rebasing might not happen immediately, so don't worry if this takes some
time.

Note: if you make any changes to this PR yourself, they will take
precedence over the rebase.

---

[//]: # (dependabot-end)

Bumps [commonmarker](https://github.com/gjtorikian/commonmarker) from
0.23.7 to 0.23.9.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/gjtorikian/commonmarker/releases">commonmarker's
releases</a>.</em></p>
<blockquote>
<h2>v0.23.9</h2>
<h2>What's Changed</h2>
<ul>
<li>Update to 0.29.0.gfm.11 by <a
href="https://github.com/anticomputer"><code>@​anticomputer</code></a>
in <a
href="https://redirect.github.com/gjtorikian/commonmarker/pull/236">gjtorikian/commonmarker#236</a></li>
</ul>
<p><strong>Full Changelog</strong>: <a
href="https://github.com/gjtorikian/commonmarker/compare/v0.23.8...v0.23.9">https://github.com/gjtorikian/commonmarker/compare/v0.23.8...v0.23.9</a></p>
<h2>v0.23.8</h2>
<h2>What's Changed</h2>
<ul>
<li>Update cmark-upstream to <code>0.29.0.gfm.9</code> by <a
href="https://github.com/smockle"><code>@​smockle</code></a> in <a
href="https://redirect.github.com/gjtorikian/commonmarker/pull/227">gjtorikian/commonmarker#227</a></li>
</ul>
<h2>New Contributors</h2>
<ul>
<li><a href="https://github.com/smockle"><code>@​smockle</code></a> made
their first contribution in <a
href="https://redirect.github.com/gjtorikian/commonmarker/pull/227">gjtorikian/commonmarker#227</a></li>
</ul>
<p><strong>Full Changelog</strong>: <a
href="https://github.com/gjtorikian/commonmarker/compare/v0.23.7...v0.23.8">https://github.com/gjtorikian/commonmarker/compare/v0.23.7...v0.23.8</a></p>
</blockquote>
</details>
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a
href="https://github.com/gjtorikian/commonmarker/blob/main/CHANGELOG.md">commonmarker's
changelog</a>.</em></p>
<blockquote>
<h1>Changelog</h1>
<h2><a
href="https://github.com/gjtorikian/commonmarker/tree/v1.0.0.pre9">v1.0.0.pre9</a>
(2023-03-28)</h2>
<p><a
href="https://github.com/gjtorikian/commonmarker/compare/v1.0.0.pre8...v1.0.0.pre9">Full
Changelog</a></p>
<p><strong>Merged pull requests:</strong></p>
<ul>
<li>Updates from upstream <a
href="https://redirect.github.com/gjtorikian/commonmarker/pull/235">#235</a>
(<a href="https://github.com/gjtorikian">gjtorikian</a>)</li>
<li>Bump comrak from 0.16.0 to 0.17.1 <a
href="https://redirect.github.com/gjtorikian/commonmarker/pull/234">#234</a>
(<a href="https://github.com/apps/dependabot">dependabot[bot]</a>)</li>
<li>Bump magnus from 0.5.1 to 0.5.2 <a
href="https://redirect.github.com/gjtorikian/commonmarker/pull/233">#233</a>
(<a href="https://github.com/apps/dependabot">dependabot[bot]</a>)</li>
<li>Add ability to load <code>tmtheme</code>s from a folder <a
href="https://redirect.github.com/gjtorikian/commonmarker/pull/232">#232</a>
(<a href="https://github.com/gjtorikian">gjtorikian</a>)</li>
<li>Bump magnus from 0.5.0 to 0.5.1 <a
href="https://redirect.github.com/gjtorikian/commonmarker/pull/231">#231</a>
(<a href="https://github.com/apps/dependabot">dependabot[bot]</a>)</li>
<li>Bump magnus from 0.4.4 to 0.5.0 <a
href="https://redirect.github.com/gjtorikian/commonmarker/pull/230">#230</a>
(<a href="https://github.com/apps/dependabot">dependabot[bot]</a>)</li>
<li>Test the new integrated rb-sys <a
href="https://redirect.github.com/gjtorikian/commonmarker/pull/228">#228</a>
(<a href="https://github.com/gjtorikian">gjtorikian</a>)</li>
</ul>
<h2><a
href="https://github.com/gjtorikian/commonmarker/tree/v1.0.0.pre8">v1.0.0.pre8</a>
(2023-03-09)</h2>
<p><a
href="https://github.com/gjtorikian/commonmarker/compare/v0.23.8...v1.0.0.pre8">Full
Changelog</a></p>
<p><strong>Closed issues:</strong></p>
<ul>
<li>Something changed in how header anchors are named in the output HTML
<a
href="https://redirect.github.com/gjtorikian/commonmarker/issues/229">#229</a></li>
<li>Problem with CommonMarker on an Azure VM <a
href="https://redirect.github.com/gjtorikian/commonmarker/issues/226">#226</a></li>
</ul>
<h2><a
href="https://github.com/gjtorikian/commonmarker/tree/v0.23.8">v0.23.8</a>
(2023-01-31)</h2>
<p><a
href="https://github.com/gjtorikian/commonmarker/compare/v1.0.0.pre7...v0.23.8">Full
Changelog</a></p>
<h2><a
href="https://github.com/gjtorikian/commonmarker/tree/v1.0.0.pre7">v1.0.0.pre7</a>
(2023-01-26)</h2>
<p><a
href="https://github.com/gjtorikian/commonmarker/compare/v0.23.7...v1.0.0.pre7">Full
Changelog</a></p>
<p><strong>Merged pull requests:</strong></p>
<ul>
<li>Bump comrak from 0.15.0 to 0.16.0 <a
href="https://redirect.github.com/gjtorikian/commonmarker/pull/225">#225</a>
(<a href="https://github.com/apps/dependabot">dependabot[bot]</a>)</li>
<li>Change <code>unsafe_</code> to <code>unsafe</code> <a
href="https://redirect.github.com/gjtorikian/commonmarker/pull/220">#220</a>
(<a href="https://github.com/gjtorikian">gjtorikian</a>)</li>
<li>Clarify syntax highlighter plugin usage in README <a
href="https://redirect.github.com/gjtorikian/commonmarker/pull/218">#218</a>
(<a href="https://github.com/DannyBen">DannyBen</a>)</li>
<li>Fix a couple of misleading README points <a
href="https://redirect.github.com/gjtorikian/commonmarker/pull/215">#215</a>
(<a href="https://github.com/DannyBen">DannyBen</a>)</li>
<li>remove gemspec <a
href="https://redirect.github.com/gjtorikian/commonmarker/pull/214">#214</a>
(<a href="https://github.com/gjtorikian">gjtorikian</a>)</li>
<li>Add shortcodes/emoji <a
href="https://redirect.github.com/gjtorikian/commonmarker/pull/210">#210</a>
(<a href="https://github.com/gjtorikian">gjtorikian</a>)</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/gjtorikian/commonmarker/commit/42cfc90251353f9fceda91b884d0ded8d3da0bcf"><code>42cfc90</code></a>
Merge pull request <a
href="https://redirect.github.com/gjtorikian/commonmarker/issues/236">#236</a>
from anticomputer/update-to-0.29.0.gfm.10</li>
<li><a
href="https://github.com/gjtorikian/commonmarker/commit/d793fbf45106f17c1eb721293bcc8d098bd999dc"><code>d793fbf</code></a>
Update cmark-upstream to <a
href="https://github.com/github/cmark-gfm/commit/1e230827a">https://github.com/github/cmark-gfm/commit/1e230827a</a>...</li>
<li><a
href="https://github.com/gjtorikian/commonmarker/commit/4e4588f2e0d34a21eeb79ec53459d248fdf56b39"><code>4e4588f</code></a>
Update Makefile for export header consolidation</li>
<li><a
href="https://github.com/gjtorikian/commonmarker/commit/2eb8ca8f2f4463448806663d72218cdcc0a9f38c"><code>2eb8ca8</code></a>
Update cmark-upstream to <a
href="https://github.com/github/cmark-gfm/commit/c8dcdc71c">https://github.com/github/cmark-gfm/commit/c8dcdc71c</a>...</li>
<li><a
href="https://github.com/gjtorikian/commonmarker/commit/bbb49db7223d71ad9366309c358c7c09a4e1c5a8"><code>bbb49db</code></a>
HtmlRenderer: don't nest &lt;strong&gt;</li>
<li><a
href="https://github.com/gjtorikian/commonmarker/commit/f303e6bae7d83c76f3a929fa9e59ae2e3ac27081"><code>f303e6b</code></a>
:gem: release 0.23.9</li>
<li><a
href="https://github.com/gjtorikian/commonmarker/commit/d6fe4c8be4febe86f68c68884b08d21a66a2aff4"><code>d6fe4c8</code></a>
Update cmark-upstream to <a
href="https://github.com/github/cmark-gfm/commit/dcf6b3862">https://github.com/github/cmark-gfm/commit/dcf6b3862</a>...</li>
<li><a
href="https://github.com/gjtorikian/commonmarker/commit/94c0af96f0bea7dad5a2f2e906cdc5ca457e025b"><code>94c0af9</code></a>
Merge pull request <a
href="https://redirect.github.com/gjtorikian/commonmarker/issues/227">#227</a>
from gjtorikian/update-to-0.29.0.gfm.9</li>
<li><a
href="https://github.com/gjtorikian/commonmarker/commit/5249f70a97f426d487bbead52f7d0ce03ab658af"><code>5249f70</code></a>
:gem: release 0.23.8</li>
<li><a
href="https://github.com/gjtorikian/commonmarker/commit/85c205798f7e7078a2abfdb9c1723616facffabf"><code>85c2057</code></a>
Added aria-label changes to test-footnotes.rb</li>
<li>Additional commits viewable in <a
href="https://github.com/gjtorikian/commonmarker/compare/v0.23.7...v0.23.9">compare
view</a></li>
</ul>
</details>
<br />


[![Dependabot compatibility
score](https://dependabot-badges.githubapp.com/badges/compatibility_score?dependency-name=commonmarker&package-manager=bundler&previous-version=0.23.7&new-version=0.23.9)](https://docs.github.com/en/github/managing-security-vulnerabilities/about-dependabot-security-updates#about-compatibility-scores)

Dependabot will resolve any conflicts with this PR as long as you don't
alter it yourself. You can also trigger a rebase manually by commenting
`@dependabot rebase`.

[//]: # (dependabot-automerge-start)
[//]: # (dependabot-automerge-end)

---

<details>
<summary>Dependabot commands and options</summary>
<br />

You can trigger Dependabot actions by commenting on this PR:
- `@dependabot rebase` will rebase this PR
- `@dependabot recreate` will recreate this PR, overwriting any edits
that have been made to it
- `@dependabot merge` will merge this PR after your CI passes on it
- `@dependabot squash and merge` will squash and merge this PR after
your CI passes on it
- `@dependabot cancel merge` will cancel a previously requested merge
and block automerging
- `@dependabot reopen` will reopen this PR if it is closed
- `@dependabot close` will close this PR and stop Dependabot recreating
it. You can achieve the same result by closing it manually
- `@dependabot ignore this major version` will close this PR and stop
Dependabot creating any more for this major version (unless you reopen
the PR or upgrade to it yourself)
- `@dependabot ignore this minor version` will close this PR and stop
Dependabot creating any more for this minor version (unless you reopen
the PR or upgrade to it yourself)
- `@dependabot ignore this dependency` will close this PR and stop
Dependabot creating any more for this dependency (unless you reopen the
PR or upgrade to it yourself)
You can disable automated security fix PRs for this repo from the
[Security Alerts
page](https://github.com/google/fuzzbench/network/alerts).

</details>

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

docs/Gemfile.lock

@@ -13,7 +13,7 @@ GEM
       execjs
     coffee-script-source (1.11.1)
     colorator (1.1.0)
-    commonmarker (0.23.7)
+    commonmarker (0.23.9)
     concurrent-ruby (1.1.10)
     dnsruby (1.61.9)
       simpleidn (~> 0.1)