Merge into one job to save some time

.gitlab-ci.yml

@@ -8,17 +8,10 @@ before_script:
 stages:
   - lint
 
-flake8:
+linting:
   tags:
     - lint
   stage: lint
   script:
     - flake8 --exclude=tests.py --max-line-length=120 *.py app
-
-pylint:
-  tags:
-    - lint
-  stage: lint
-  script:
     - pylint --ignore=tests.py --max-line-length=120 *.py app
-