Merge branch '21034-controller-groups-labelscontroller-index-executes-more-than-100-sql-queries' into 'master'

Reduce queries on Controller Groups::LabelsController#index [RUN AS-IF-FOSS] [RUN ALL RSPEC]

See merge request gitlab-org/gitlab!57517

Start cleaning up CI/CD variables documentation

See merge request gitlab-org/gitlab!57464

Bump gitlab-experiment to 0.5.2 [RUN ALL RSPEC] [RUN AS-IF-FOSS]

See merge request gitlab-org/gitlab!58428

Merge branch 'gitlab-ui-integration-1347-feat-alert-migrate-dismiss-button-to-glbutton' into 'master'

Upgrade @gitlab/ui to v28.18.2

See merge request gitlab-org/gitlab!57542

Document OmniAuth provider names in a table

See merge request gitlab-org/gitlab!58165

Expose User API endpoint to the Front End

See merge request gitlab-org/gitlab!55033

Add product tier badges to Package product docs

See merge request gitlab-org/gitlab!57845

Populate missing dismissal information for vulnerabilities

See merge request gitlab-org/gitlab!57347

Add needed fields to job type

See merge request gitlab-org/gitlab!57530

Change DevopsAdoption updates to be weekly

See merge request gitlab-org/gitlab!58474

Geo: Update the planned failover documentation

See merge request gitlab-org/gitlab!55747

Add links to the handbook in error budget docs

See merge request gitlab-org/gitlab!58492

Fix doc for working from feature branches

See merge request gitlab-org/gitlab!39909

Mounts CI variables setting form correctly

See merge request gitlab-org/gitlab!58496

Add notes about SHAs in Diff APIs

See merge request gitlab-org/gitlab!58335

Bumping GLEX to get updated spec helpers and matcher that are more
friendly when stubbing and expecting.

part of:
https://gitlab.com/gitlab-org/gitlab/-/issues/285286
https://gitlab.com/gitlab-org/gitlab-experiment/-/issues/23

API endpoint /job is a 13.10 feature

See merge request gitlab-org/gitlab!58500

Add GLEX frontend experiment helpers/spec helpers

See merge request gitlab-org/gitlab!58415

Minor adjustment to Geo framework spec

See merge request gitlab-org/gitlab!58490

Remove time frame constraint from name suggestion

See merge request gitlab-org/gitlab!58091

Fixes bug where component was
not being mounted.

Merge branch '8883-api-endpoint-put-projects-id-merge_requests-merge_request_iid-approvers-executes-more-than-100' into 'master'

Resolve "API endpoint PUT /projects/:id/merge_requests/:merge_request_iid/approvers executes more than 100 SQL queries"

See merge request gitlab-org/gitlab!57344

Apply suggestions from review

Removes deprecated approvers update endpoint

See merge request gitlab-org/gitlab!57473

Add the logic of marking subsequent jobs as processable when playing job

See merge request gitlab-org/gitlab!56492

Update Gitaly version

See merge request gitlab-org/gitlab!58491

New Crowdin translations - 01 Apr 2021

See merge request gitlab-org/gitlab!58462

This adds a few links back from the developer documentation to the
general documentation in the handbook.