Migrate Git::CommitStats to Gitaly

Closes gitaly#519

See merge request !14077

Add developer documentation about working with sent emails and previews

See merge request !14227

Resolve "Error 500 in non-UTF8 branch names"

This could potentially "duplicate" branches on the UI, but it prevents
500 errors. The real issue here is the fact that a branch name with a
invalid UTF-8 characters.

Closes #37025

See merge request !14090

Fixed the breadcrumbs project name not having hover style

Closes #37661

See merge request !14211

Detect orphaned repositories

See merge request !14204

Allow to use same periods for housekeeping tasks

Closes #34981

See merge request !13711

Fix JS error in fly-out nav

See merge request !14212

Replace the 'project/issues/award_emoji.feature' spinach test with an rspec analog

See merge request !14202

Replace the 'project/builds/summary.feature' spinach test with an rspec analog

See merge request !14177

Eager load namespace owners for project dashboards

Closes #27376

See merge request !14188

Reset primary keys after swapping events tables

See merge request !14182

Add GitLab-Pages version to Admin Dashboard

Closes #36953

See merge request !14040

Closes #37661

Hide read_registry scope when registry is disabled on instance

See merge request !13314

Fix a `wiki_page` factory instantiation for the case when project's namespace is a group

Closes #37729

See merge request !14205

Signed-off-by: Rémy Coutable <remy@rymai.me>

Replace the 'project/merge_requests/revert.feature' spinach test with an rspec analog

See merge request !14201

Replace the 'project/milestone.feature' spinach test with an rspec analog

See merge request !14171

Update installation and update instructions for 10.0

[ci skip]

See merge request !14135

Docs group mrs list view search bar

See merge request !14196

Reset all connection schema cache after migration tests

See merge request !14195

Make all the tooltips in the same direction on the commit info box

See merge request !14128

We might also want to consider reduce the number of
connections in the tests. However I just tried setting it to 1
and that doesn't seem enough for feature tests.

Replace the 'project/merge_requests/accept.feature' spinach test with an rspec analog

See merge request !14176

This enables skipping a lesser housekeeping task
(incremental or full repack) by consistently
scheduling a higher task (respectively full repack or gc)
with the same period.
Cf. #34981

Replace 'project/wiki.feature' spinach test with an rspec analog

See merge request !13856

Add gitaly to patch update doc

Closes gitlab-ee#3389

See merge request !14184