Updated gitlab-ci

.gitlab-ci.yml

@@ -13,8 +13,7 @@ test-backend:
   script:
     # this configures Django application to use attached postgres database that is run on `postgres` host
     - cd backend/secfit
-    - apt-get update -qy
-    - apt-get install -y python-dev python-pip
+    - apk add python python-dev python pip
     - pip install -r requirements.txt
     - python manage.py test