workflows.stale - add workflow with action `crs-k/[email protected]…

….2` to open issues for and delete stale branches

.github/workflows/stale.yml

@@ -0,0 +1,22 @@
+name: Stale Branches
+
+on:
+  schedule:
+    - cron: '0 8 * * *'
+  workflow_dispatch:
+
+jobs:
+  stale:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Stale Branches
+        uses: crs-k/[email protected]
+        with:
+          repo-token: '${{ secrets.GITHUB_TOKEN }}'
+          stale-branch-label: 'Stale Branch'
+          days-before-stale: 30
+          days-before-delete: 730
+          compare-branches: 'info'
+          comment-updates: true
+          tag-committer: true
+          max-issues: 50