Quarantine flakey GFM label test

See merge request gitlab-org/gitlab-ce!24675

Docs: fix table on ci/variables

Closes gitlab-com/gitlab-docs#323

See merge request gitlab-org/gitlab-ce!24632

Container repository cleanup API

Closes #55978

See merge request gitlab-org/gitlab-ce!24303

Resolve "Milestone search"

Closes #54905

See merge request gitlab-org/gitlab-ce!24265

Adds steps for running GitLab Pages on a separate server

See merge request gitlab-org/gitlab-ce!24256

Cross-project pipeline triggers /CE

See merge request gitlab-org/gitlab-ce!24664

This includes a set of APIs to manipulate container registry.
This includes also an ability to delete tags based on requested
criteria, like keep-last-n, matching-name, older-than.

Convert note_actions_spec.js to Vue test utils

See merge request gitlab-org/gitlab-ce!24665

Linking to backup doc from migration doc, for self-hosted to self-hosted migration

Closes #56339

See merge request gitlab-org/gitlab-ce!24592

Reimplement Copy-as-GFM using the prosemirror document model

See merge request gitlab-org/gitlab-ce!22797

Use http_max_redirects opt to replace monkeypatch

Closes #54250

See merge request gitlab-org/gitlab-ce!24284

Fix empty labels for `pages:deploy` job

Closes #40997

See merge request gitlab-org/gitlab-ce!24451

Adds tracing support for ActiveRecord notifications

See merge request gitlab-org/gitlab-ce!24604

see https://github.com/vuejs/vue-test-utils/issues/631#issuecomment-421108344

Init GLForm instance on form while editing tags

Closes #56424

See merge request gitlab-org/gitlab-ce!24645

This commit segregates interface that is require to make CI/CD entity
processable, like `Ci::Build`. With this change it is not clear and
explicit what methods need to be implement to pass an object to pipeline
processing service.