Update pipeline to check types and formatting

.gitlab-ci.yml

@@ -18,7 +18,7 @@ testing:
     stage: test
     before_script:
         - pip install pipenv
-        - pipenv requirements > requirements.txt
+        - pipenv requirements --dev > requirements.txt
         - pip install -r requirements.txt 
     script:
         - black --check $CI_PROJECT_DIR