Bump oxidize-rb/actions from 1.1.7 to 1.1.9

Bumps [oxidize-rb/actions](https://github.com/oxidize-rb/actions) from 1.1.7 to 1.1.9.
- [Release notes](https://github.com/oxidize-rb/actions/releases)
- [Commits](oxidize-rb/actions@v1.1.7...v1.1.9)

---
updated-dependencies:
- dependency-name: oxidize-rb/actions
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

.github/workflows/ci.yml

@@ -23,7 +23,7 @@ jobs:
         uses: actions/checkout@v3
 
       - name: Set up Ruby and Rust
-        uses: oxidize-rb/actions/[email protected].7
+        uses: oxidize-rb/actions/[email protected].9
         with:
           rustup-toolchain: ${{ matrix.rustup-toolchain }}
           ruby-version: ${{ matrix.ruby-version }}