Update googleapis/release-please-action action to v5

Author: renovate[bot]

.github/workflows/release-please.yml

@@ -13,7 +13,7 @@ jobs:
   release-please:
     runs-on: ubuntu-latest
     steps:
-      - uses: googleapis/release-please-action@v4
+      - uses: googleapis/release-please-action@v5
         id: release
         with:
           command: manifest