message: tag image during build job
diff: @@ -258,6 +258,7 @@ jobs:
  echo "BUILDTIME=$(date -u '+%F-%T')" >> ./functions/.env
  - gcp-gcr/build-image:
  image: test-image
  + tag: $CIRCLE_SHA1
  - gcp-gcr/gcr-auth
  - gcp-gcr/push-image:
  image: test-image
  