Added stale issues

.github/workflows/close-stale-issues.yml

@@ -0,0 +1,20 @@
+name: 'Close stale issues'
+on:
+  schedule:
+    - cron: '30 1 * * *'
+  workflow_dispatch:
+permissions:
+  issues: write
+jobs:
+  invalid-authors:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/stale@v4
+        name: 'Close invalid author'
+        with:
+          days-before-issue-stale: 3
+          days-before-issue-close: 1
+          stale-issue-message: 'Please note that this issue will be closed within 24 hours because it has been flagged as having invald authors. [Read the guidance](https://github.com/pnp/sp-dev-fx-webparts/wiki/How-to-create-good-issues#mention-authors) and @mention the authors so they can respond to you.'
+          only-issue-labels: 'status:wrong-author'
+          close-issue-message: 'Closing this issue due to lack of response. Feel free to open a new issue, but make sure to follow the guidance on [how to create good issues](https://github.com/pnp/sp-dev-fx-webparts/wiki/How-to-create-good-issues#mention-authors) and @mention the authors so they can respond to you.'
+          debug-only: true