Improve various Geo FDW queries that need aggregate pushdown to be fast

Closes #4491

See merge request gitlab-org/gitlab-ee!4024

Use an at_exit hook to stop test gitaly

See merge request gitlab-org/gitlab-ee!4088

Docs: fix duplicate sections (CI docs)

See merge request gitlab-org/gitlab-ee!4090

Remove a changelog item that is added to CE (to prevent duplicating)

See merge request gitlab-org/gitlab-ee!4086

Docs: move article "Undo possibilities in Git" into its topic-related dir

See merge request gitlab-org/gitlab-ee!4089

Port the SAST DAST doc examples from EE to CE

See merge request gitlab-org/gitlab-ee!4052

dynamic imports for projects:e/f/i

See merge request gitlab-org/gitlab-ee!4077

[API] Fix creating issue when assignee_id is empty

Closes gitlab-ce#42025

See merge request gitlab-org/gitlab-ee!4083

CE upstream - Monday

Closes gitaly#893

See merge request gitlab-org/gitlab-ee!4079

See https://gitlab.com/gitlab-org/gitlab-ce/issues/42025

Fixing request json mime type

Closes #41598

See merge request gitlab-org/gitlab-ce!16427

Refactor dispatcher for snippets:*

See merge request gitlab-org/gitlab-ce!16390

Refactor dispatcher for snippets:* (EE Version)

See merge request gitlab-org/gitlab-ee!4037

Refactor dispatcher project mr index path (EE)

See merge request gitlab-org/gitlab-ee!4028

Refactor dispatcher project mr index path

Closes #41341

See merge request gitlab-org/gitlab-ce!16399

Refactor dispatcher project branches create path (EE)

See merge request gitlab-org/gitlab-ee!4012

Log and send a system hook if a blocked user attempts to login

Closes #41633

See merge request gitlab-org/gitlab-ce!16451

Refactor dispatcher project branches create path

See merge request gitlab-org/gitlab-ce!16380

Improve after_script docs in yaml/README.md

See merge request gitlab-org/gitlab-ce!16444

Migrate Repository#can_be_merged? to Gitaly

Closes gitaly#893

See merge request gitlab-org/gitlab-ce!16316

Closes #41633

CE upstream - Saturday

Closes gitlab-ce#41891 and #2383

See merge request gitlab-org/gitlab-ee!4065

# Conflicts:
#	app/assets/javascripts/dispatcher.js

[ci skip]

CE upstream - Friday

See merge request gitlab-org/gitlab-ee!4060