its late and I should go to bed

- typo correction again in the CI script

.gitlab-ci.yml

@@ -54,7 +54,7 @@ build_client:
     - docker:19.03.12-dind
   stage: build
   script:
-    - docker build -f app/client/Dockerfile -t $IMAGE_TAG .
+    - docker build -f app/client/Dockerfile -t $CLIENT_IMAGE_TAG .
     - docker tag $CLIENT_IMAGE_TAG $CLIENT_RELEASE_IMAGE_TAG
     - docker push $CLIENT_RELEASE_IMAGE_TAG
   only: