chore(ci): replace stale app with github action

.github/workflows/stale.yml

@@ -0,0 +1,25 @@
+name: Maintenance
+
+on:
+  schedule:
+    - cron: "0 19 * * *"
+
+jobs:
+  stale:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/stale@v3.0.14
+        with:
+          repo-token: ${{ secrets.GITHUB_TOKEN }}
+          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.
+          stale-pr-message: |
+            This PR 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.
+          days-before-stale: 60
+          days-before-close: 7
+          close-issue-label: wontfix
+          close-pr-label: wontfix