chore(deps): update googleapis/release-please-action digest to 16a9c90 (#617)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

.github/workflows/release.yml

@@ -19,7 +19,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: googleapis/release-please-action@c2a5a2bd6a758a0937f1ddb1e8950609867ed15c # v4
+      - uses: googleapis/release-please-action@16a9c90856f42705d54a6fda1823352bdc62cf38 # v4
         id: release
         with:
           token: ${{secrets.RELEASE_PLEASE_ACTION_TOKEN}}