fix: alarm schedule

Author: maxday

.github/workflows/bootstrap-alarms.yml

@@ -5,8 +5,8 @@ permissions:
   contents: read
 
 on:
-  pull_request:
-    branches: [ '*' ]
+  schedule:
+    - cron: '0 8 * * 1'  # Every Monday at 08:00 UTC
   workflow_dispatch:
 
 env: