ci: bump googleapis/release-please-action from 4 to 5

Bumps [googleapis/release-please-action](https://github.com/googleapis/release-please-action) from 4 to 5.
- [Release notes](https://github.com/googleapis/release-please-action/releases)
- [Changelog](https://github.com/googleapis/release-please-action/blob/main/CHANGELOG.md)
- [Commits](googleapis/release-please-action@v4...v5)

---
updated-dependencies:
- dependency-name: googleapis/release-please-action
  dependency-version: '5'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

.github/workflows/release.yaml

@@ -19,7 +19,7 @@ jobs:
           app-id: ${{ secrets.APP_ID }}
           private-key: ${{ secrets.APP_PRIVATE_KEY }}
 
-      - uses: googleapis/release-please-action@v4
+      - uses: googleapis/release-please-action@v5
         id: release
         with:
           token: ${{ steps.app-token.outputs.token }}