Merge branch 'aureplop/ci-move-services' into 'master'

core.ci -- Fix CI (postgres version) + speed up job "linters"

See merge request cof-geek/gestioCOF!324

.gitlab-ci.yml

@@ -1,9 +1,5 @@
 image: "python:3.5"
 
-services:
-    - postgres:latest
-    - redis:latest
-
 variables:
     # GestioCOF settings
     DJANGO_SETTINGS_MODULE: "cof.settings.prod"
@@ -37,6 +33,9 @@ test:
         - coverage run manage.py test
     after_script:
         - coverage report
+    services:
+        - postgres:9.6
+        - redis:latest
     cache:
         key: test
         paths: