Add Browser Performance Testing docs

Closes #4404

See merge request gitlab-org/gitlab-ee!3852

EE port of layout-nav-es-module

See merge request gitlab-org/gitlab-ee!3829

[EE] Add BlocksJsonSerialization model concern and include it in User

See merge request gitlab-org/gitlab-ee!3835

Resolve "Reset Pipeline Minutes / Pipeline Quota in the Admin UI"

Closes #3973

See merge request gitlab-org/gitlab-ee!3656

CE upstream - Saturday

Closes gitlab-ce#38019, gitlab-qa#86, #4125, and gitaly#808

See merge request gitlab-org/gitlab-ee!3803

Multiple k8s clusters documentation

Closes #4320

See merge request gitlab-org/gitlab-ee!3800

Mention Auto SAST in merge request SAST docs

Closes #4380

See merge request gitlab-org/gitlab-ee!3836

Fix onion-skin re-entering state (EE Version)

See merge request gitlab-org/gitlab-ee!3743

Remove related links in MR widget when empty state (EE Version)

See merge request gitlab-org/gitlab-ee!3763

Show inline edit button for issues (EE Version)

See merge request gitlab-org/gitlab-ee!3719

Previously, this would include the entire User record in the update
hash, which was rendered in the response using `to_json`, erroneously
exposing every attribute of that record, including their (now removed)
private token.

Now we only include the user ID, and perform the lookup on-demand.

Zj gitaly pipelines n 1 ee

See merge request gitlab-org/gitlab-ee!3815

Remove unneeded ignore_column statements for GeoNode

Closes #4195

See merge request gitlab-org/gitlab-ee!3819

Split TCP and TLS connectivity testing in Geo database configuration

Closes #4240

See merge request gitlab-org/gitlab-ee!3764

EE: Make sure two except won't overwrite each other

Closes gitlab-qa#140

See merge request gitlab-org/gitlab-ee!3827

Ee fix cluster enviroment missing

Closes #4361

See merge request gitlab-org/gitlab-ee!3806

This is a pretty boring solution, but I can't
think of a good idea right now and this might be
good enough for now...

Optimize QA pipeline and don't run irrelevant jobs

Closes gitlab-qa#140

See merge request gitlab-org/gitlab-ce!15977

[Geo] Update disaster recovery document

See merge request gitlab-org/gitlab-ee!3804

Rename CI job `clair` to `sast:image`

See merge request gitlab-org/gitlab-ee!3816