Bump softprops/action-gh-release from 2.1.0 to 2.2.1

Bumps [softprops/action-gh-release](https://github.com/softprops/action-gh-release) from 2.1.0 to 2.2.1.
- [Release notes](https://github.com/softprops/action-gh-release/releases)
- [Changelog](https://github.com/softprops/action-gh-release/blob/master/CHANGELOG.md)
- [Commits](softprops/action-gh-release@01570a1...c95fe14)

---
updated-dependencies:
- dependency-name: softprops/action-gh-release
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

.github/workflows/release.yaml

@@ -116,7 +116,7 @@ jobs:
 
     - name: Upload binaries to release
       if: github.event_name == 'release'
-      uses: softprops/action-gh-release@01570a1f39cb168c169c802c3bceb9e93fb10974 # v0.1.15
+      uses: softprops/action-gh-release@c95fe1489396fe8a9eb87c0abf8aa5b2ef267fda # v0.1.15
       with:
         files: brotli-${{matrix.triplet}}.zip
 
@@ -140,7 +140,7 @@ jobs:
 
     - name: Upload archive to release
       if: github.event_name == 'release'
-      uses: softprops/action-gh-release@01570a1f39cb168c169c802c3bceb9e93fb10974 # v0.1.15
+      uses: softprops/action-gh-release@c95fe1489396fe8a9eb87c0abf8aa5b2ef267fda # v0.1.15
       with:
         files: testdata.txz