Update .gitlab-ci.yml file

.gitlab-ci.yml

+image: anddebol/pbl-tests:latest
+stages:          # List of stages for jobs, and their order of execution
+  - build
+  - test
+
+build-job:       # This job runs in the build stage, which runs first.
+  stage: build
+  script:
+    - echo "Compiling the code..."
+    - mkdir build && cd build
+    - >-   
+        cmake -DCMAKE_C_COMPLER=gcc -DCMAKE_CXX_COMPILER=g++ 
+        -DCMAKE_Fortran_COMPILER -S ..
+    - make -j 4
+    - echo "Compile complete."
+  timeout: 10 minutes
+  artifacts:
+    paths:
+        - build/CMakeCache.txt
+        - build/inmcm_sfx
+
+
+dry-run:   # This job runs in the test stage.
+  stage: test    # It only starts when the job in the build stage completes successfully.
+  script:
+    - echo "Running unit tests... This will take about 60 seconds."
+    - cd build
+    - inmcm_sfx 
+    - echo "Code coverage is 90%"