Log updated branch protections for pagelist and run the check on a schedule (#52693)

.github/branch_protection_settings/main.json

@@ -41,6 +41,7 @@
       "workflows",
       "lint-code",
       "secret-scanning",
+      "pagelist"
     ],
     "contexts_url": "https://api.github.com/repos/github/docs-internal/branches/main/protection/required_status_checks/contexts",
     "checks": [
@@ -83,7 +84,8 @@
       { "context": "products", "app_id": 15368 },
       { "context": "workflows", "app_id": 15368 },
       { "context": "lint-code", "app_id": 15368 },
-      { "context": "secret-scanning", "app_id": 15368 }
+      { "context": "secret-scanning", "app_id": 15368 },
+      { "context": "pagelist", "app_id": 15368 }
     ]
   },
   "restrictions": {

.github/workflows/alert-changed-branch-protections.yml

@@ -3,6 +3,8 @@ name: Alert Changed Branch Protections
 on:
   branch_protection_rule:
   workflow_dispatch:
+  schedule:
+    - cron: '20 16 * * 3' # Run every Wednesday at 16:30 UTC / 8:30 PST
 
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   contents: read