ci: scope down permissions for stale_issues.yml

Author: AdnaneKhan

.github/workflows/stale_issues.yml

@@ -5,6 +5,10 @@ on:
   schedule:
   - cron: "0 0 * * *"
 
+permissions:
+  issues: write
+  pull-requests: write
+
 jobs:
   cleanup:
     runs-on: ubuntu-latest