ci(repo): enable stale and close issues and PRs. (#17933)

.github/workflows/stale.yml

@@ -0,0 +1,21 @@
+name: "Close stale issues and PRs"
+on:
+  schedule:
+    - cron: "0 1 * * *" # Runs at 01:00 UTC every day
+
+jobs:
+  stale:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/stale@v5
+        with:
+          stale-issue-message: "This issue is stale because it has been open for 45 days with no activity."
+          stale-pr-message: "This PR is stale because it has been open for 45 days with no activity."
+          close-issue-message: "This issue was closed because it has been inactive for 14 days since being marked as stale."
+          close-pr-message: "This PR was closed because it has been inactive for 14 days since being marked as stale."
+          days-before-stale: 45
+          days-before-close: 14
+          exempt-issue-labels: "option.pinned,category.security"
+          exempt-pr-labels: "option.pinned,category.security"
+          stale-issue-label: "status.stale"
+          stale-pr-label: "status.stale"