Fix : CI avec lancement des tests unitaires

.gitlab-ci.yml

@@ -24,13 +24,7 @@ default:
     - paths:
       - .apt/
 
-# Defining the stages present in this pipeline
-stages:
-  - build
-
-# Running build stage
-install_environment:
-  stage: build
+tests:
   script: 
     # Install dependencies and create associated cache dirs
     - mkdir -p "${APT_STATE_LISTS}/partial"