Close stale PRs with GitHub actions

Author: iluuu1994

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

@@ -0,0 +1,20 @@
+name: Close stale PRs
+
+on:
+  schedule:
+    - cron: "0 0 * * *"
+
+jobs:
+  stale:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/stale@v4
+        with:
+          days-before-close: 0
+          days-before-stale: 14
+          # Temporary, avoid closing PRs until this action merged
+          debug-only: true
+          exempt-pr-labels: RFC,Waiting on Review
+          # Hack to skip issues, unfortunately there's no option to disable issues
+          only-issue-labels: inexistent-label
+          stale-pr-message: This PR is automatically being closed because there hasn't been any recent activity. Feel free to reopen it when development continues.