[Snyk] Security upgrade node-sass from 4.12.0 to 4.13.1

[snyk-bot]

Snyk has created this PR to fix one or more vulnerable packages in the `npm` dependencies of this project.

Changes included in this PR

• Changes to the following files to upgrade the vulnerable dependencies to a fixed version:
  • package.json

Vulnerabilities that will be fixed

With an upgrade:

Severity	Priority Score (*)	Issue	Breaking Change	Exploit Maturity
	715/1000 Why? Has a fix available, CVSS 9.8	Use After Free SNYK-JS-NODESASS-535497	No	No Known Exploit

(*) Note that the real score may have changed since the PR was raised.

Commit messages

Package name: node-sass

The new version differs by 24 commits.

• b54053a Update changelog
• 01db051 4.13.1
• 338fd7a Merge pull request from GHSA-f6rp-gv58-9cw3
• c6f2e5a doc: README example fix (#2787)
• fbc9ff5 Merge pull request #2754 from saper/no-map-if-not-requested
• 60fad5f 4.13.0
• 43db915 Merge pull request #2768 from sass/release-4-13
• 0c8d308 Update references for v4.13 release
• f1cc0d3 Use GCC 6 for Node 12 binaries (#2767)
• 3838eae Use GCC 6 for Node 12 binaries
• e84c6a9 Merge pull request #2766 from saper/node-modules-79
• 64b6f32 Node 13 support
• 8498f70 Fix #2394: sourceMap option should have consistent behaviour
• 8d0acca Merge pull request #2753 from schwigri/master
• b0d4d85 Fix broken link to NodeJS docs in README.md
• 887199a Merge pull request #2730 from kessenich/master
• b1f54d7 Fix #2614 - Update lodash version
• 96aa279 Merge pull request #2726 from XhmikosR/master-xmr-typos
• 8421979 Assorted typo fixes.
• 2513e6a chore: Remove PR template
• 7ab387c Merge pull request #2673 from abetomo/remove_sudo_setting_from_travis
• 15355dd Remove sudo settings from .travis.yml
• 0c1a49e chore: Add not in PR template about node-gyp 4.0
• e59f5ba chore: Change note about Node 12 support

See the full diff

Check the changes in this PR to ensure they won't cause issues with your project.

---

Note: You are seeing this because you or someone else with access to this repository has authorized Snyk to open fix PRs.

For more information:
🧐 View latest project report

🛠 Adjust project settings

📚 Read more about Snyk's upgrade and patch logic