Switch branch for layout script for testing

Author: zooba

windows-release/stage-layout-pymanager.yml

@@ -2,7 +2,7 @@ parameters:
   BuildToPackage: current
   DoFreethreaded: false
   DoEmbed: false
-  LayoutScriptBranch: main
+  LayoutScriptBranch: gh-135455
 
 jobs:
 - job: Make_PyManager_Layouts