Fix Rails/SaveBang offenses for spec/services/milestones/*

See merge request gitlab-org/gitlab!42775

Fixes Rails/SaveBang cop for spec files in spec/services/milestones/*

Move Feature Flag Services to Core RUN AS-IF-FOSS

See merge request gitlab-org/gitlab!42645

Part of moving feature flags to core

Merge branch 'ar-219824-replace-gl-deprecated-button-with-gl-button-in-app-assets-javascripts-jobs-components' into 'master'

Replace <gl-deprecated-button> with <gl-button> in sidebar.vue

Closes #219824

See merge request gitlab-org/gitlab!38939

Update Gitaly version

See merge request gitlab-org/gitlab!42767

Report auth events in manage stage usage ping

See merge request gitlab-org/gitlab!39747

Docs: Edited Container Registry docs

See merge request gitlab-org/gitlab!42411

Related to: https://gitlab.com/gitlab-org/gitlab/-/issues/247950

[Docs] Update related issues doc move to core

See merge request gitlab-org/gitlab!42524

Add link to feature flag instructions

See merge request gitlab-org/gitlab!42748

Add Cluster Error Messages

See merge request gitlab-org/gitlab!35669

Added new node_error_help_text component
Added error text to clusters/constants.js
Updated associated translations and tests

Changing Security Dashboard to Security Center

See merge request gitlab-org/gitlab!42740

Fix Markdown preview on New/Edit Release and New Snippet pages

See merge request gitlab-org/gitlab!42640

This commit fixes the Markdown preview on the New Release page, the
Edit Release page, and the New Snippet page.

Clarify who has the permission to export project

See merge request gitlab-org/gitlab!42671

Add Web IDE as dropdown item to diff file edit

See merge request gitlab-org/gitlab!42275

Update dependency @gitlab/ui to v21.4.2

See merge request gitlab-org/gitlab!42530

Resolve "[QA] Remove the :docker tag from the end-to-end specs"

Closes #249600

See merge request gitlab-org/gitlab!42387

Remove tags.scss in favor of using utility classe

Closes #239883

See merge request gitlab-org/gitlab!42739

Remove "Goals" Header from Kubernetes Agent docs

See merge request gitlab-org/gitlab!42652

Add hashicorp image for JWT flow

See merge request gitlab-org/gitlab!42404

and rename the image.

Add Redis slow log demo video

See merge request gitlab-org/gitlab!42710

Update pipeline failed notification e-mail warning

Closes #251121

See merge request gitlab-org/gitlab!42736

Merge branch '251119-test-cannot-be-run-in-production-qa-specs-features-browser_ui-3_create-repository' into 'master'

The 'Push mirror a repository over HTTP' E2E test requires admin

Closes #251119

See merge request gitlab-org/gitlab!42717

Remove unused SCSS file ui_dev_kit.scss

Closes #239893

See merge request gitlab-org/gitlab!42729

Cleanup audit event service attributes

See merge request gitlab-org/gitlab!42718

Load milestone issues tab asynchronously

See merge request gitlab-org/gitlab!42473

Update Gitaly version

See merge request gitlab-org/gitlab!42731

Security dashboard doc changes

See merge request gitlab-org/gitlab!42726