* master: (76 commits)

Conflicts:
	lib/gitlab/untrusted_regexp.rb

Remove Spinach

Closes #23036

See merge request gitlab-org/gitlab-ce!18869

Backport Cluster related EE code

See merge request gitlab-org/gitlab-ce!18931

Disable RBAC on Ingress by default

Closes #46286

See merge request gitlab-org/gitlab-ce!18947

Update wiki page deletion confirmation

See merge request gitlab-org/gitlab-ce!18712

Enable update_(build|pipeline) for maintainers

Closes #45905

See merge request gitlab-org/gitlab-ce!18735

Fix link to MR for Maintainer Access docs

See merge request gitlab-org/gitlab-ce!18951

Fix minor typo of main docs page

See merge request gitlab-org/gitlab-ce!18952

Correct skewed Kubernetes popover illustration

Closes #46345

See merge request gitlab-org/gitlab-ce!18949

Move SquashBeforeMerge vue component

See merge request gitlab-org/gitlab-ce!18813

It was changed to be true on https://github.com/kubernetes/charts/commit/c60086ec0b260996281d337d67f2361f826f7029

Closes #46286

Backport EE-specific untrusted regexp implementation

See merge request gitlab-org/gitlab-ce!18938

Improve the code review section in MR templates.

See merge request gitlab-org/gitlab-ce!18920

More verbose logging for deprecated path access

See merge request gitlab-org/gitlab-ce!18943

Fix cross-origin errors when attempting to download JavaScript attachments

Closes #45826

See merge request gitlab-org/gitlab-ce!18936

update sidekiq 5.0 -> 5.1

See merge request gitlab-org/gitlab-ce!18765

Resolve "[Rails5] Fix spec/models/ci/pipeline_spec.rb"

Closes #46229

See merge request gitlab-org/gitlab-ce!18906

Current logging tells us we've isolated the calls to about 5 call sites,
now we'd like to know what is calling these methods.

Change `expect` to `except` on help page

See merge request gitlab-org/gitlab-ce!18940