Update CI architecture image
The CI architecture shows a separate GitLab CI server, which is no longer required. Renamed the server on the image to reflect that you just need the GitLab server.
Do not update/delete: Banner broadcast message test data
Do not update/delete: Notification broadcast message test data
The CI architecture shows a separate GitLab CI server, which is no longer required. Renamed the server on the image to reflect that you just need the GitLab server.