removed pushing base-image with commit sha when merged because it doesn't exist

.gitlab-ci.yml

@@ -60,7 +60,6 @@ push base image:
     script:
         - echo "$HARBOR_PASSWORD" | docker login -u "$HARBOR_USER" --password-stdin $REGISTRY_URL
         - docker push ${REGISTRY_URL}/ops/base:${PROJECT_NAME}
-        - docker push ${REGISTRY_URL}/ops/base:${CI_COMMIT_SHORT_SHA}
     rules:
         - if: '$CI_COMMIT_BRANCH == $CI_DEFAULT_BRANCH'
           changes: