ci: only one pipeline by MR and add a build job

.gitlab-ci.yml

 image: node:18.12.1-slim
 
 stages:
+  - build
   - 🧪 test
   - 📝 publish
   - 🧽 clean
@@ -8,38 +9,53 @@ stages:
 variables:
   SUB_GROUP:          "www"
 
-lint:
-  stage: 🧪 test
+.cache:
   tags:
     - cache
-  script:
-    - rm -Rf node_modules
-    - npm ci
-    - npm run lint
   cache:
-    policy: push
     key:
       files:
-        - package.json
+        - package-lock.json
     paths:
-      - node_modules
+      - node_modules/
+  rules:
+    - if: $CI_COMMIT_BRANCH == $CI_DEFAULT_BRANCH
+    - if: $CI_MERGE_REQUEST_IID
+
+.cache-push:
+  extends: .cache
+  cache:
+    policy: push
+
+.cache-pull:
+  extends: .cache
+  cache:
+    policy: pull
+
+install_dependencies:
+  extends: .cache-push
+  stage: build
+  script:
+    - npm ci
+  rules:
+    - changes:
+        - package-lock.json
+
+lint:
+  extends: .cache-pull
+  stage: 🧪 test
+  script:
+    - npm run lint
 
 pages:
+  extends: .cache-pull
   stage: 📝 publish
-  tags:
-    - cache
   script:
     - npm run build
     - mv build public
   artifacts:
     paths:
       - public
-  cache:
-    key:
-      files:
-        - package.json
-    paths:
-      - node_modules
   rules:
     - if: $CI_COMMIT_BRANCH == $CI_DEFAULT_BRANCH
   environment: