Merge pull request #9301 from vmware-tanzu/fix_action_isse

Fix the push action invalid variable ref issue.

Author: blackpiglet

.github/workflows/push.yml

@@ -12,7 +12,7 @@ jobs:
   get-go-version:
     uses: ./.github/workflows/get-go-version.yaml
     with:
-      ref: ${ github.ref }
+      ref: ${{ github.ref }}
 
   build:
     name: Build