Resolve "CI: affiner la gestion du cache"

Closes #526 (closed)

.gitlab-ci.yml

@@ -36,6 +36,10 @@ before_script:
   - echo -e "Host *\n\tStrictHostKeyChecking no\n\n" > ~/.ssh/config
 
 cache:
+  key:
+    files:
+      - jalhyd_branch
+      - package.json
   paths:
     - node_modules/