[CI] Change AzDO public pipeline to run weekly instead of per-commit (#9437)

* Initial plan for issue

* Change AzDO pipeline to run on weekly schedule

Co-authored-by: radical <[email protected]>

---------

Co-authored-by: copilot-swe-agent[bot] <[email protected]>
Co-authored-by: radical <[email protected]>

Author: Copilot

eng/pipelines/azure-pipelines-public.yml

@@ -1,20 +1,15 @@
-trigger:
-  batch: true
+# Replaced per issue request - changed from per-commit to weekly schedule
+schedules:
+- cron: "0 0 * * 1" # Run at midnight (UTC) on Monday each week
+  displayName: Weekly Monday build
   branches:
     include:
     - main
     - release/*
-  paths:
-    include:
-      - '*'
-    exclude:
-      - '**.md'
-      - eng/Version.Details.xml
-      - .github/*
-      - docs/*
-      - LICENSE.TXT
-      - PATENTS.TXT
-      - THIRD-PARTY-NOTICES.TXT
+  always: true # Run even when there are no code changes
+  
+# Excluding normal trigger as we're now using schedules
+trigger: none
 
 pr:
   branches: