add stale action for processing PRs and Issues (#2301)

.github/workflows/stale.yml

@@ -0,0 +1,28 @@
+name: "Mark stale issues and pull requests"
+
+on:
+  schedule:
+    - cron: "0 0 * * *" # Runs every day at midnight
+
+jobs:
+  stale:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/stale@v9
+        with:
+          operations-per-run: 30
+          remove-stale-when-updated: true
+          # Pull request configuration
+          days-before-stale-pr: 14
+          days-before-stale-pr-draft: 180
+          days-before-close-pr: 7
+          stale-pr-message: "This pull request has been marked as stale due to inactivity."
+          close-pr-message: "Closing this pull request due to inactivity."
+          stale-pr-label: "S: Stale"
+          # Issue configuration: We only operate on issues that are waiting for a response
+          days-before-stale-issue: 14
+          days-before-close-issue: 14
+          only-issue-labels: "S: Awaiting response"
+          stale-issue-message: "Please follow-up with this issue and provide more information on how to close it or make progress on it"
+          close-issue-message: "Closing this issue due to inactivity."
+          stale-issue-label: "S: Stale"