UI server sync main (#1146)

* Sync to main branch, and only on release.

* Sync to main branch.

.github/workflows/update-ui-server.yml

@@ -1,11 +1,9 @@
 name: Update UI Server
 
 on:
-  # Have to add push here for now.
-  # There is no way to trigger a workflow dispatch for a workflow until the file exists on the main branch :(
-  # As this action currently only runs a diff, it does not commit, this is fine to test it
   push:
-  workflow_dispatch:
+    branches:
+      - main
 
 jobs:
   sync:
@@ -38,7 +36,7 @@ jobs:
         with:
           repository: temporalio/ui-server
           path: ui-server
-          ref: ui-release
+          ref: main
           token: ${{ secrets.COMMANDER_DATA_TOKEN }}
       - name: Sync
         run: |