fix: remove extra image

Author: agneum

.gitlab-ci.yml

@@ -209,7 +209,7 @@ build-image-latest-server-dev:
     DOCKER_FILE: "Dockerfile.dblab-server"
     DOCKER_NAME: "registry.gitlab.com/postgres-ai/database-lab/dblab-server"
   before_script:
-    - export TAGS="${DOCKER_NAME}:${LATEST_TAG},${DOCKER_NAME}:${CI_COMMIT_TAG}"
+    - export TAGS="${DOCKER_NAME}:${CI_COMMIT_TAG}"
 
 build-image-latest-ci-checker:
   <<: *build_image_definition