This commit adds the "Allow merge trains" options to the project merge
request settings page.  This option is only visible in EE.  This option
is also hidden behind the "merge_trains" feature flag.

Use existing showPage() from BoardsStoreEE in BoardForm

See merge request gitlab-org/gitlab-ee!13243

I18N JS files starting with u

See merge request gitlab-org/gitlab-ce!28177

i18n JS files starting with u - EE

See merge request gitlab-org/gitlab-ee!12457

Fix MR widget padding

Closes #58632

See merge request gitlab-org/gitlab-ce!28472

[EE] Fix MR widget padding

See merge request gitlab-org/gitlab-ee!13008

Add source and gdk installations to components

See merge request gitlab-org/gitlab-ce!28691

[EE] Fix MySQL CI jobs

Closes gitlab-ce#62156 and gitlab-ce#62151

See merge request gitlab-org/gitlab-ee!13149

Fix MySQL CI jobs

Closes #62156 and #62151

See merge request gitlab-org/gitlab-ce!28593

Merge branch '6578-extract-ee-specific-files-lines-for-spec-features-security-project-snippet' into 'master'

Resolve "Extract EE specific files/lines for spec/features/security/project/snippet"

Closes #6578

See merge request gitlab-org/gitlab-ee!13275

Adds Identity#for_user for use in an EE MR

See merge request gitlab-org/gitlab-ce!28697

Replaces a hard-coded date in the job app spec

Closes #62283

See merge request gitlab-org/gitlab-ce!28709

Add `memory_profiler` and `derailed_benchmarks`

See merge request gitlab-org/gitlab-ce!28698

Clarify that /copy_metadata only works within same project

See merge request gitlab-org/gitlab-ce!28671

Pull files for repository tree from GraphQL API

See merge request gitlab-org/gitlab-ce!28638

EE port of vue-repo-list-backend-frontend

See merge request gitlab-org/gitlab-ee!13273

Fix height of input groups

Closes #61304, #61303, #59254, and #60778

See merge request gitlab-org/gitlab-ce!28495

Group SAML docs explain metadata configuration

See merge request gitlab-org/gitlab-ce!28700

Remove feature flag for GroupSaml metadata

Closes #9657

See merge request gitlab-org/gitlab-ee!12659

Fix milestone references with HTML entities in the name

Closes #62114

See merge request gitlab-org/gitlab-ce!28667

Add support for second `config` param in GraphQL wrapper lib

See merge request gitlab-org/gitlab-ce!28705

Prevent icons from shrinking in User popover when contents exceed container

Closes #61827

See merge request gitlab-org/gitlab-ce!28696