Previously we'd use "event.author_email" which translates to
"event.author.email". This would result in an extra query being executed
_for every event_ just to get the same author's Email address.

Instead of doing all this useless work we can just pass the User object
returned by "event.author" since:

1. This allows us to re-use the user object's Email address.
2. Authors are eager-loaded, so this doesn't cause any N+1 queries.

Add controller#action metrics on Gitaly

See merge request gitlab-org/gitlab-ce!15244

At this time we had good metrics on what number or requests each GRPC
received, but were in the dark what controller#action combination was
responsable. Or if Sidekiq was responsable. Now added are call counts
per service and rpc matched with controller#action combinations.

Fix defaults for MR states and merge statuses

Closes #40534

See merge request gitlab-org/gitlab-ce!15594

Hashed storage attachments migration path

See merge request gitlab-org/gitlab-ce!15352

Strip leading & trailing whitespaces in CI/CD secret variable keys

See merge request gitlab-org/gitlab-ce!15615

Upgrade codeclimate image to latest

Closes #40255

See merge request gitlab-org/gitlab-ce!15461

Add new API endpoint - list jobs of a specified runner

Closes #39699

See merge request gitlab-org/gitlab-ce!15432

limit icon component size to valid values

See merge request gitlab-org/gitlab-ce!15618

Upgrade seed-fu to 2.3.7

Closes #40568

See merge request gitlab-org/gitlab-ce!15607

Add new API endpoint - get a namespace by ID

Closes #40254

See merge request gitlab-org/gitlab-ce!15442

Refactor the way we pass `old associations` to issuable's update services

Closes #40226

See merge request gitlab-org/gitlab-ce!15542

This commit also makes spec/policies/namespace_policy_spec.rb file
to be compatible with the same file in GitLab EE.

Backport disable autocomplete

See merge request gitlab-org/gitlab-ce!15557

Update prometheus gem to fix build on RPi

Closes omnibus-gitlab#2988

See merge request gitlab-org/gitlab-ce!15616

Backport epic fullscreen

See merge request gitlab-org/gitlab-ce!15437

Backport of add-epic-sidebar

See merge request gitlab-org/gitlab-ce!15335

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

Create issue and merge request destroy services

Closes #39601

See merge request gitlab-org/gitlab-ce!15604

Add in the Oxford comma

See merge request gitlab-org/gitlab-ce!15602

Fix 404 on commits list for branch that doesn't have any files

See merge request gitlab-org/gitlab-ce!15603

Optimise StuckCiJobsWorker

Closes gitlab-com/infrastructure#3260

See merge request gitlab-org/gitlab-ce!15527