[CI] Fix Gitlab pages

Signed-off-by: Thomas Citharel <tcit@tcit.fr>

.gitlab-ci.yml

@@ -165,12 +165,12 @@ pages:
     - mv doc public/backend
   #     #- yarn run --cwd "js" styleguide:build
   #     #- mv js/styleguide public/frontend
-#   rules:
-#     - if: '$CI_COMMIT_BRANCH == "master"'
-#   artifacts:
-#     expire_in: 1 hour
-#     paths:
-#       - public
+  rules:
+    - if: '$CI_COMMIT_BRANCH == "master"'
+  artifacts:
+    expire_in: 1 hour
+    paths:
+      - public
 
 .docker: &docker
   stage: docker