CI/CD Pipeline: move before_script inside a default block

.gitlab-ci.yml

@@ -11,6 +11,7 @@ stages:
   - test
   - deploy
 
+default:
   # Commmon to all stages -- needed because the image's storage is not persistent across them
   before_script:
     # uncomment for debugging. Watch out! It *will* expose any secret passed from an unprotected variable.