stale action

.github/workflows/stale.yml

@@ -0,0 +1,23 @@
+name: 'Stale'
+on:
+  schedule:
+    - cron: '30 1 * * *'
+  workflow_dispatch:
+permissions: read-all
+
+jobs:
+  stale:
+    permissions:
+      contents: write
+      issues: write
+      pull-requests: write
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/stale@a20b814fb01b71def3bd6f56e7494d667ddf28da # v4.1.1
+        with:
+          stale-issue-message: 'This issue is stale because it has been open 30 days with no activity. Remove stale label or comment or this will be closed in 5 days.'
+          days-before-stale: 30
+          days-before-close: 5
+          enable-statistics: true
+          exempt-issue-labels: enhancement
+          exempt-pr-labels: enhancement