housekeeping: Add auto-locking

.github/workflows/lock.yml

@@ -0,0 +1,31 @@
+name: 'Lock Threads'
+
+on:
+  schedule:
+    - cron: '0 * * * *'
+  workflow_dispatch:
+
+permissions:
+  issues: write
+  pull-requests: write
+
+concurrency:
+  group: lock
+
+jobs:
+  action:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: dessant/lock-threads@v3
+    with:
+      github-token: ${{ github.token }}
+      issue-inactive-days: '14'
+      pr-inactive-days: '14'
+      issue-comment: >
+        This issue has been automatically locked since there
+        has not been any recent activity after it was closed.
+        Please open a new issue for related bugs.
+      pr-comment: >
+        This pull request has been automatically locked since there
+        has not been any recent activity after it was closed.
+        Please open a new issue for related bugs.