add close stale issues workflow (#4816)

Author: tastelikefeet

.github/workflows/close_tale_issue.yaml

@@ -0,0 +1,20 @@
+name: Close Stale Issues
+on:
+  schedule:
+    - cron: '0 0 * * *'
+  workflow_dispatch:
+
+jobs:
+  close-stale:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Close stale issues
+        uses: actions/stale@v8
+        with:
+          repo-token: ${{ secrets.GITHUB_TOKEN }}
+          days-before-stale: 90
+          days-before-close: 7
+          stale-issue-message: 'This issue has been inactive for over 3 months and will be automatically closed in 7 days. If this issue is still relevant, please reply to this message.'
+          close-issue-message: 'This issue has been automatically closed due to inactivity. If needed, it can be reopened.'
+          stale-issue-label: 'stale'
+          exempt-all-issue-labels: true