Use the default password from the GDK's root user
Closes https://gitlab.com/gitlab-org/gitlab-qa/issues/73, though we're not using Dotenv currently, as this was the more boring solution.
Do not update/delete: Banner broadcast message test data
Do not update/delete: Notification broadcast message test data
Closes https://gitlab.com/gitlab-org/gitlab-qa/issues/73, though we're not using Dotenv currently, as this was the more boring solution.