Add Acceptance testing issue template

See merge request gitlab-org/gitlab-ce!21156

Core backports from the Premium license templates feature

See merge request gitlab-org/gitlab-ce!21212

Duplicate specs testing emoji awards on issues

Closes #45238

See merge request gitlab-org/gitlab-ce!21126

Add author-link style from common.scss in EE

See merge request gitlab-org/gitlab-ce!21204

Reduce number of model instances needed in test.

Closes #49788

See merge request gitlab-org/gitlab-ce!21192

Add Czech as an available language

Closes #43227

See merge request gitlab-org/gitlab-ce!21201

Documentation for JUnit XML Test Summary In MR widget

Closes #49867

See merge request gitlab-org/gitlab-ce!21061

Port EE changes for mirrors/_instructions.html.haml

See merge request gitlab-org/gitlab-ce!21107

Add a "user_show_add_ssh_key_message" application setting for use with SSH certificates

Closes #49953

See merge request gitlab-org/gitlab-ce!21027

New translations added to `locale/cs_CZ` will automatically be picked up.

Closes #49788.

Backport of https://gitlab.com/gitlab-org/gitlab-ee/merge_requests/6860

See merge request gitlab-org/gitlab-ce!21200

Creates vue component for artifacts block

See merge request gitlab-org/gitlab-ce!21198

chore(docs): add field repository_update_events

See merge request gitlab-org/gitlab-ce!21205

Fix `bin/secpick` rainbow gem error, and security branch prefixing

See merge request gitlab-org/gitlab-ce!21210

Resolve "JS Pages do not load on windows 8, IE 11"

Closes #50281

See merge request gitlab-org/gitlab-ce!21214

Vendor in Auto-DevOps.gitlab-ci.yml to update glibc to 2.28

Closes #50294

See merge request gitlab-org/gitlab-ce!21191

MR Page incremental rendering

See merge request gitlab-org/gitlab-ce!21063

Modified find project method to return nil if project not found

See merge request gitlab-org/gitlab-ce!21168

Resolve "Clicking on the text of checkboxes of runner's settings should toggle the checkbox"

Closes #49905

See merge request gitlab-org/gitlab-ce!21165

Closes: #45238

Resolve "Profile audit log does not show Google icon properly"

Closes #50180

See merge request gitlab-org/gitlab-ce!21207

Fix bugs in Gitlab::Template::Finders preventing instances from BaseTemplate.all from loading content

vendored from https://gitlab.com/gitlab-org/gitlab-ci-yml/merge_requests/186

Thanks @sgerrand !

Expose all artifacts sizes in jobs api

See merge request gitlab-org/gitlab-ce!20821

Fixes #50180