Remove non-existent site branch from publish workflow trigger

Co-authored-by: amitsaha <512598+amitsaha@users.noreply.github.com>

Author: Copilot

.github/workflows/publish.yml

@@ -4,7 +4,6 @@ on:
   push:
     branches:
       - master
-      - site
   workflow_dispatch:
 
 permissions: