Apply suggestions from code review

Author: caugner

.github/workflows/auto-cleanup-bot.yml

@@ -5,7 +5,7 @@ on:
     - cron: "0 0 * * *"
   workflow_dispatch:
 
-    # No GITHUB_TOKEN permissions, as we only use it to increase API limit.
+# No GITHUB_TOKEN permissions, as we only use it to increase API limit.
 # We use AUTOMERGE_TOKEN to create the PR.
 permissions: {}