Bump softprops/action-gh-release from 2.0.8 to 2.2.1

Bumps [softprops/action-gh-release](https://github.com/softprops/action-gh-release) from 2.0.8 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@v2.0.8...v2.2.1)

---
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]>

Author: dependabot[bot]

.github/workflows/release-notes.yml

@@ -43,7 +43,7 @@ jobs:
         run: echo "$CHANGELOG" >> $GITHUB_STEP_SUMMARY
       - name: Upload Release Notes (on release)
         if: github.event_name == 'release'
-        uses: softprops/action-gh-release@v2.0.8
+        uses: softprops/action-gh-release@v2.2.1
         with:
           body: ${{ steps.release-notes.outputs.changelog }}
       - name: Error on uncategorized PRs