Refactor Github Action per b/485167538 (#610)

Co-authored-by: Ben Knutson <benknutson@google.com>

Author: google-admin

.github/workflows/build-and-push-to-gcr.yml

@@ -22,10 +22,12 @@ jobs:
       - name: Check release version
         id: check-tag
         run: |
-          echo "version=$(echo ${{ github.event.ref }} | cut -d / -f 3 | cut -c2-)" >> $GITHUB_OUTPUT
-          if [[ ${{ github.event.ref }} =~ ^refs/tags/v[0-9]+\.[0-9]+\.[0-9]+$ ]]; then
+          echo "version=$(echo ${GITHUB_EVENT_REF} | cut -d / -f 3 | cut -c2-)" >> $GITHUB_OUTPUT
+          if [[ ${GITHUB_EVENT_REF} =~ ^refs/tags/v[0-9]+\.[0-9]+\.[0-9]+$ ]]; then
               echo "match=true" >> $GITHUB_OUTPUT
           fi
+        env:
+          GITHUB_EVENT_REF: ${{ github.event.ref }}
 
       - name: Authenticate to GCP
         id: authenticate

.github/workflows/deploy.yml

@@ -19,10 +19,12 @@ jobs:
       - name: Check release version
         id: check-tag
         run: |
-          echo "version=$(echo ${{ github.event.ref }} | cut -d / -f 3 | cut -c2-)" >> $GITHUB_OUTPUT
-          if [[ ${{ github.event.ref }} =~ ^refs/tags/v[0-9]+\.[0-9]+\.[0-9]+$ ]]; then
+          echo "version=$(echo ${GITHUB_EVENT_REF} | cut -d / -f 3 | cut -c2-)" >> $GITHUB_OUTPUT
+          if [[ ${GITHUB_EVENT_REF} =~ ^refs/tags/v[0-9]+\.[0-9]+\.[0-9]+$ ]]; then
               echo "match=true" >> $GITHUB_OUTPUT
           fi
+        env:
+          GITHUB_EVENT_REF: ${{ github.event.ref }}
 
       - name: Authenticate to GCP
         id: authenticate