Fix broken end-to-end test

What does this MR do?

Fix broken test affected by https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/28643/diffs#cadf27ddeefd6a2117bb8d02a5cb92ecd649094d_50_49.

Does this MR meet the acceptance criteria?

Conformity

• [-] Changelog entry
• [-] Documentation created/updated or follow-up review issue created
• Code review guidelines
• [-] Merge request performance guidelines
• Style guides
• [-] Database guides
• [-] Separation of EE specific content