[xcode12.5] [CI] Do not build translation branches in the internal pool. (#11077)

* [CI] Do not build translation branches in the internal pool.

* VSTS I love you.

Co-authored-by: Manuel de la Pena <mandel@microsoft.com>

tools/devops/automation/build-pipeline.yml

@@ -66,6 +66,8 @@ trigger:
   branches:
     include:
     - '*'
+    exclude:
+    - refs/heads/locfiles/*
 
 pr:
   autoCancel: true