The events footer <-> header don't work yet, including all related tests
but all three components are now in a root component.

Add Ubuntu 20.04 to the supported versions

Closes #238541

See merge request gitlab-org/gitlab!40092

Minor fix to text in table

See merge request gitlab-org/gitlab!40054

Add JWT signing for internal cluster agent API

See merge request gitlab-org/gitlab!39781

This ensures only gitlab-kas can make requests to the internal API,
which is necessary as sensitive info is returned in response.

Update instances where we explicitly want to use the top-level
::Clusters module

Remove the memoization of source_branch_exists on merge request

See merge request gitlab-org/gitlab!39944

Update needs limit for gitlab.com

See merge request gitlab-org/gitlab!40081

Fix Ruby 2.7 deprecation warning in JSON module

See merge request gitlab-org/gitlab!40066

Merge branch '229297-migrate-bootstrap-button-to-gitlab-ui-glbutton-in-ee-app-assets-javascripts' into 'master'

Replace Bootstrap Button & LoadingButton w/ GitLab UI GlButton in vulnerability_action_buttons.vue

See merge request gitlab-org/gitlab!39651

Support private token headers for composer

Closes #232636

See merge request gitlab-org/gitlab!38641

Cluster Agent delete mutation for GraphQl

See merge request gitlab-org/gitlab!38622

Added cluster agent delete mutation fo graphql
Added cluster agent delete service
Updated associated tests

Change to snake case in EnvironmentsHelper [RUN AS-IF-FOSS]

Closes #225318

See merge request gitlab-org/gitlab!36786

Apply sizing to configuration variables

See merge request gitlab-org/gitlab!40002

Update Gitaly version

See merge request gitlab-org/gitlab!40086

Replace backstage with tooling in the issue workflow documentation

See merge request gitlab-org/gitlab!39840

Extend composer specs to test for auth token
from private token param

Reduce database manipulation in service spec

See merge request gitlab-org/gitlab!39973

Fix example within file_hooks documentation

Closes #217984

See merge request gitlab-org/gitlab!40071

Process for Deprecation of GraphQL fields/tables

See merge request gitlab-org/gitlab!39584

Add missing URL to snippet feature flag yml

See merge request gitlab-org/gitlab!39997