Revert "Update .gitlab-ci.yml file"

This reverts commit 6e3d2b15e1

.gitlab-ci.yml

@@ -1,19 +1,18 @@
-install:
-  image: node:21.7.3
-  before_script:
-    - corepack enable
-    - pnpm config set store-dir .pnpm-store
+merge:
+  image: docker:cli
+  stage: test
+  services:
+    - docker:dind
+  variables:
+    DOCKER_IMAGE_NAME: $CI_REGISTRY_IMAGE:$CI_COMMIT_REF_SLUG
   script:
-    - pnpm install
-  cache:
-    key:
-      files:
-        - pnpm-lock.yaml
-    paths:
-      - .pnpm-store
+    - docker build -t "$DOCKER_IMAGE_NAME" .
+  rules:
+    - if: '$CI_PIPELINE_SOURCE == "merge_request_event"'
 
 build:
   image: docker:cli
+  stage: build
   services:
     - docker:dind
   variables:
@@ -27,5 +26,3 @@ build:
         docker push "$CI_REGISTRY_IMAGE:main"
   rules:
     - if: '$CI_COMMIT_BRANCH == $CI_DEFAULT_BRANCH'
-  dependencies:
-    - install