fix(CI): set default

.gitlab-ci.yml

@@ -2,8 +2,9 @@ variables:
   STORAGE_DRIVER: "vfs"
   BUILDAH_FORMAT: "docker"
 
-image: "quay.io/buildah/stable"
-before_script:
+default:
+  image: "quay.io/buildah/stable"
+  before_script:
     - buildah login --u "$CI_REGISTRY_USER" -p "$CI_REGISTRY_PASSWORD" $CI_REGISTRY
     - source environment
     - >
@@ -15,6 +16,7 @@ before_script:
         --build-arg collab_text="${COLLAB_TEXT}"
         --build-arg admin_is_sysadmin="${ADMIN_IS_SYSADMIN}"
         -t "$CI_REGISTRY_IMAGE" .
+
 build-main:
   script:
     - buildah tag "$CI_REGISTRY_IMAGE" "$CI_REGISTRY_IMAGE:branch-$CI_COMMIT_REF_SLUG"