add stale github actions workflow

.github/workflows/stale.yml

@@ -0,0 +1,21 @@
+name: Close Stale Issues
+
+on:
+  schedule:
+    - cron: '0 0 * * *' # Runs daily at midnight
+  workflow_dispatch: # Allows manual triggering of the workflow
+
+jobs:
+  stale:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Close stale issues
+        uses: actions/stale@v8
+        with:
+          repo-token: ${{ secrets.GITHUB_TOKEN }}
+          stale-issue-message: 'This issue has been automatically marked as stale because it has not had recent activity. If the issue is still valid, please comment or update it. Otherwise, it will be closed in 7 days.'
+          stale-pr-message: 'This pull request has been automatically marked as stale because it has not had recent activity. If the pull request is still valid, please comment or update it. Otherwise, it will be closed in 7 days.'
+          days-before-stale: 365 # Number of days of inactivity before an issue is marked as stale
+          days-before-close: 7 # Number of days to wait to close an issue after it has been marked as stale
+          exempt-issue-labels: 'never-stale' # Label to exempt issues from being marked as stale
+          exempt-pr-labels: 'never-stale' # Label to exempt pull requests from being marked as stale