Add stale actions

.github/workflows/stale.yml

@@ -0,0 +1,34 @@
+# This workflow warns and then closes issues and PRs that have had no activity for a specified amount of time.
+#
+# You can adjust the behavior by modifying this file.
+# For more information, see:
+# https://github.com/actions/stale
+name: Mark stale issues and pull requests
+
+on:
+  schedule:
+  - cron: '30 11 * * *'
+
+jobs:
+  stale:
+
+    runs-on: ubuntu-latest
+    permissions:
+      issues: write
+      pull-requests: write
+
+    steps:
+    - uses: actions/stale@v5
+      with:
+        days-before-close: 14
+        repo-token: ${{ secrets.GITHUB_TOKEN }}
+        stale-issue-message: >
+          This issue has had no activity for 60 days and will be closed in 7 days. Removing the
+          "Stale" label or posting a comment will prevent it from being closed automatically. You
+          can also add the "Pinned" label to ensure it isn't marked as stale in the future.
+        exempt-issue-labels: 'Pinned, Priority'
+        stale-pr-message: >
+          This pull request has had no activity for 60 days and will be closed in 7 days. Removing
+          the "Stale" label or posting a comment will prevent it from being closed automatically.
+          You can also add the "Pinned" label to ensure it isn't marked as stale in the future.
+        exempt-pr-labels: 'Pinned, Priority'