Use action for stale bot (#2193)

.github/workflows/stale.yml

@@ -0,0 +1,25 @@
+name: Stale
+
+on:
+  schedule:
+    - cron: "0 * * * *"
+  workflow_dispatch:
+
+jobs:
+  stale:
+    runs-on: ubuntu-latest
+    steps:
+      - name: 30 days stale issues
+        uses: actions/stale@v4
+        with:
+          repo-token: ${{ secrets.GITHUB_TOKEN }}
+          days-before-issue-stale: 30
+          days-before-issue-close: 7
+          operations-per-run: 150
+          remove-stale-when-updated: true
+          stale-issue-label: "stale"
+          exempt-issue-labels: "pinned,security,Help wanted"
+          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.