Merge branch 'fix/git-access-wiki-when-repository-feature-disabled' into 'master'
Fixes access to the wiki code with git when repository feature disabled
## What does this MR do?
Allow access to the wiki repository with git when the repository feature is disabled.
## Why was this MR needed?
Without this fix, if you create a wiki only project you are not allowed to download the wiki code from this project.
## Does this MR meet the acceptance criteria?
- [X] [Changelog entry](https://docs.gitlab.com/ce/development/changelog.html) added
- [ ] ~~[Documentation created/updated](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/doc/development/doc_styleguide.md)~~
- [ ] ~~API support added~~
- Tests
- [X] Added for this feature/bug
- [ ] All builds are passing
- [X] Conform by the [merge request performance guides](http://docs.gitlab.com/ce/development/merge_request_performance_guidelines.html)
- [X] Conform by the [style guides](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/CONTRIBUTING.md#style-guides)
- [ ] Branch has no merge conflicts with `master` (if it does - rebase it please)
- [X] [Squashed related commits together](https://git-scm.com/book/en/Git-Tools-Rewriting-History#Squashing-Commits)
## What are the relevant issue numbers?
Fixes #24931
See merge request !7832
24e5a1e8db