Update .gitlab-ci.yml

.gitlab-ci.yml

 image: python:latest
 
 services:
-    - redis:latest
+    - redis
+    - rabbitmq
 
 before_script:
     - pip install -e .
     - pip install flake8
     
-connect:
-    - image: redis
-    - script:
-        - redis-cli -h redis PING
-
 test:
     script:
         - export FRACTALIS_MODE="testing"