Disable main brancg in the All-lib YAML file

Author: dvoituron

eng/pipelines/build-all-lib.yml

@@ -3,14 +3,10 @@ name: $(FileVersion).$(Year:yy)$(DayOfYear).$(Rev:r)
 
 trigger:
   branches:
-    include:
-      - main
+    include: []         # Explicitly disable branch triggers
   tags:
     include:
       - v*              # Triggers on tags like v1.0.0, v2.1.3
-    exclude:
-      - "*-alpha"       # Skip alpha versions
-      - "*-dev"         # Skip development tags
 pr: none         # Disable pull request triggers.
 
 parameters: