Update stale bot

Author: JannisX11

.github/stale.yml

@@ -0,0 +1,28 @@
+# This workflow warns and then closes issues and PRs that have had no activity for a specified amount of time.
+# You can adjust the behavior by modifying this file.
+# For more information, see:
+# https://github.com/actions/stale
+
+name: 'Close stale issues and PRs'
+on:
+  schedule:
+    - cron: '30 1 * * *'
+
+jobs:
+  stale:
+    runs-on: ubuntu-latest
+    permissions:
+      issues: write
+      pull-requests: write
+    steps:
+      - name: Close Stale Issues
+        uses: actions/stale@v9
+        with:
+          stale-issue-message: >
+            This issue has been automatically marked as stale because it has not had
+            recent activity. It will be closed if no further activity occurs. Thank you
+            for your contributions.
+          close-issue-message: >
+              This issue has been automatically closed due to inactivity.
+          days-before-stale: 360
+          days-before-close: 28