fix(ui): run UI jobs after merging into the master branch (#415)

Author: agneum

ui/.gitlab-ci.yml

@@ -8,6 +8,9 @@ include:
     - if: $CI_PIPELINE_SOURCE == "merge_request_event"
       changes:
         - ui/**/*
+    - if: '$CI_COMMIT_BRANCH == $CI_DEFAULT_BRANCH'
+      changes:
+        - ui/**/*
 
 default:
   image: node:lts-alpine