Move create group with mattermost spec to correct dir
What does this MR do?
Moves create group with mattermost spec to correct dev stage dir
Conformity
- [-] Changelog entry for user-facing changes, or community contribution. Check the link for other scenarios.
- [-] 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