Update 'DevOps and Game Dev with GitLab CI/CD' doc

See merge request gitlab-org/gitlab-ce!25944

Merge branch '6774-admin-dashboard-users-statistics-link-should-be-placed-differently' into 'master'

Backport of Admin Dashboard "Users Statistics" link should be placed differently

See merge request gitlab-org/gitlab-ce!26192

Add beta caution to hashed object pools

See merge request gitlab-org/gitlab-ce!26289

Fix note lists throughout docs

See merge request gitlab-org/gitlab-ce!26346

Backport of avoid_es_loading_commits

See merge request gitlab-org/gitlab-ce!26301

CE-port of 6571-single-codebase

See merge request gitlab-org/gitlab-ce!26355

Initialize discussionFilter after notesApp

Closes #58883

See merge request gitlab-org/gitlab-ce!26092

Removes EE differences for blank.scss

Closes gitlab-ee#10533

See merge request gitlab-org/gitlab-ce!26354

Removes EE differences from common.scss

Closes gitlab-ee#10532

See merge request gitlab-org/gitlab-ce!26352

Merge branch 'ee-6516-extract-ee-specific-files-lines-for-spec-models-project_services' into 'master'

Tweak kubernetes_service_spec for EE compatibility

Closes gitlab-ee#6516

See merge request gitlab-org/gitlab-ce!26155

Removes EE differences for builds.css

Closes gitlab-ee#10520

See merge request gitlab-org/gitlab-ce!26351

Removes EE differences for pipelines.scss

Closes gitlab-ee#10517

See merge request gitlab-org/gitlab-ce!26350

CE backport of forcing sending notifications to saml provided email

See merge request gitlab-org/gitlab-ce!25739

Adds conditional to close assignee menu when visible in EE

Reduce height of instance system message

Closes #58410

See merge request gitlab-org/gitlab-ce!25752

Move gfm_autocomplete_spec.rb out of quarantine

Closes #57995 and #56843

See merge request gitlab-org/gitlab-ce!25958

Add additional link to 2fa page

See merge request gitlab-org/gitlab-ce!25731

Add documentation about Auto DevOps at group level

Closes #58810

See merge request gitlab-org/gitlab-ce!26061

Includes a new section on our Auto Devops documentation about enabling
or disabling Auto DevOps at group level.

Closes https://gitlab.com/gitlab-org/gitlab-ce/issues/58810

Remove static JavaScript HAML fixtures

Closes #24753

See merge request gitlab-org/gitlab-ce!26019

Only count active milestones as started

Closes #58782

See merge request gitlab-org/gitlab-ce!25969

Docs: note some apps not installable in group level cluster

See merge request gitlab-org/gitlab-ce!26249

As that is indeed available for group clusters.

GitHub import: Create new branches as project owner

See merge request gitlab-org/gitlab-ce!26335

Reject HEAD requests to info/refs endpoint

Closes #54579

See merge request gitlab-org/gitlab-ce!26334

Update pipeline detail view to accommodate post-merge pipelines

See merge request gitlab-org/gitlab-ce!25775

Send schema cache to Sentry on MissingAttributeError

See merge request gitlab-org/gitlab-ce!26331

In production, we see high error rates due to clients attempting to use
the dumb Git HTTP protocol with HEAD /foo/bar.git/info/refs
endpoint. This isn't supported and causes Error 500s because Workhorse
doesn't send along its secret because it's not proxying this request.

Closes https://gitlab.com/gitlab-org/gitlab-ce/issues/54579

This avoids permission errors when importing merge requests whose
authors don't have direct access to push to the main repository.