Update .gitlab-ci.yml file

.gitlab-ci.yml

@@ -9,7 +9,7 @@ run_unit_tests:
     - pip install virtualenv
     - virtualenv venv
     - source venv/bin/activate
-    - pip install coverage
+    - pip install -r requirements.txt
   script:
     - coverage run -m unittest
     - coverage report --omit="./tests/*"