Merge pull request ceph#52736 from ljflores/wip-update-stale

.github/workflows: pin the stale bot to the latest version

Author: ljflores

.github/workflows/stale.yml

@@ -9,7 +9,7 @@ jobs:
   stale:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/stale@v5
+      - uses: actions/stale@v8
         with:
           # PAT for GitHub API authentication
           repo-token: "${{ secrets.GITHUB_TOKEN }}"