Create repo-maintenance.yml

.github/workflows/repo-maintenance.yml

@@ -0,0 +1,22 @@
+name: 'Repository Maintenance'
+
+on:
+  schedule:
+    - cron: '0 3 * * *'
+  workflow_dispatch:
+
+permissions:
+  issues: write
+  pull-requests: write
+  discussions: write
+jobs:
+  stale:
+    name: 'Stale'
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/stale@v9
+        with:
+          stale-issue-message: >
+            This issue has been automatically marked as stale because it has not had
+            recent activity. It will be closed if no further activity occurs. Thank you
+            for your contributions.