Remove prohibit_hexadecimal_branch_names feature flag

See merge request gitlab-org/gitlab!80603

Improve branch defs in repository branch API

See merge request gitlab-org/gitlab!80505

Allow spawning metrics_server instead of forking into it

See merge request gitlab-org/gitlab!80191

This provides better memory use for Puma, and we
will require this for running a non-Ruby server
in the future.

This does not actually start the server for Puma
yet.

Change opened to created

See merge request gitlab-org/gitlab!80378

Fix metric keys changing with switch to Ci connection

See merge request gitlab-org/gitlab!80354

Upgrade to Rails v6.1.4.6

See merge request gitlab-org/gitlab!80579

Add warning notification in settings > monitor page

See merge request gitlab-org/gitlab!80696

Docs for logging visibility and deprecations

See merge request gitlab-org/gitlab!79944

ci: Bump all global cache keys for Debian bullseye

See merge request gitlab-org/gitlab!80656

Roadmap settings - Include subgroup in group milestones

See merge request gitlab-org/gitlab!80685

Doc updates for SAST/SD rule overrides

See merge request gitlab-org/gitlab!80567

Doc updates for SAST & Secret-Detection Custom Rule overrides

Remove dependency scanning variable

See merge request gitlab-org/gitlab!79575

Depreciation of oauth tokens with no expiry

See merge request gitlab-org/gitlab!79178

Fix merge request tabs background leakage

See merge request gitlab-org/gitlab!80612

Issue: https://gitlab.com/gitlab-org/gitlab/-/issues/343197
Changelog: fixed

Improve access token wording for deprecation

See merge request gitlab-org/gitlab!80569

This also updates the Gemfile.lock to contain the rainbow gem,
which was added to Gemfile earlier.

@rails/actioncable and @rails/ujs likely haven't changed, but we
should make the frontend versions consistent with the Rails backend
version.

* Diff: https://github.com/rails/rails/compare/v6.1.4.4...v6.1.4.6

Relates to https://gitlab.com/gitlab-org/gitlab/-/issues/352659

Changelog: security

Deprecate legacy Gitaly config methods

See merge request gitlab-org/gitlab!80545

Skip specs for flags that do not work for fully decomposed dbs

See merge request gitlab-org/gitlab!80459

Update rake tasks to have multi-db versions

See merge request gitlab-org/gitlab!80312

Merge branch '352746-quarantine-Create-Design-Management-user-adds-a-design-and-annotates-it' into 'master'

[QUARANTINE] Create Design Management user adds a design and annotates it

See merge request gitlab-org/gitlab!80688

Revert "Proxy webpack dev server in test environment"

See merge request gitlab-org/gitlab!80586

Add wait for feature flag in iterations e2e spec

See merge request gitlab-org/gitlab!79995

Behind `roadmap_settings` feature flag

Categorize deprecations and removals files

See merge request gitlab-org/gitlab!80446

This reverts commit 7afca793.

Fix broken spec/requests/api/projects_spec.rb

See merge request gitlab-org/gitlab!80689

https://gitlab.com/gitlab-org/gitlab/-/merge_requests/79968 removed
`requirements_access_level` from `project_attributes.yml`, and
https://gitlab.com/gitlab-org/gitlab/-/merge_requests/80667 re-added
this attribute to fix to fix a broken FOSS spec.

However, https://gitlab.com/gitlab-org/gitlab/-/merge_requests/80667
broke master because the attribute is used in EE. We now conditionally
add `requirements_access_level` as an expected key in EE and omit this
in FOSS builds.

Relates to https://gitlab.com/gitlab-org/gitlab/-/issues/352764

Quarantine Create Design Management user adds a design and annotates it