Update .gitlab-ci.yml file

.gitlab-ci.yml

-image: python:3.9.17-buster
-
-before_script:
-  - pip install mkdocs-material
 stages:
   - build
   - docker
 
 Build:
   stage: build
+  image: python:3.9.17-buster
   # tags:
   #   - pip
   script:
+    - pip install mkdocs-material
     - mkdocs build
   artifacts:
     paths:
@@ -30,6 +28,7 @@ DockerBuild:
     entrypoint: [""]
   script:
     - |
+        ls -l
         echo "CI_PROJECT_DIR : ${CI_PROJECT_DIR}"
         echo "CI_REGISTRY_IMAGE : ${CI_REGISTRY_IMAGE}"
         echo "CI_COMMIT_TAG : ${CI_COMMIT_TAG}"