Improve performance of GitHub importer

Closes #28183

See merge request !10273

Remove deprecated code from pipeline processing service

Closes #30052

See merge request !10266

Fix race condition in namespace directory creation

See merge request !10268

Add support for Gitaly calls over TCP connection

Closes gitaly#166

See merge request !10410

Add feature flags for enabling (Upload|Receive)Pack

Closes gitaly#168

See merge request !10341

Make file templates easy to use and discover

Closes #25332

See merge request !9782

Enable Style/Proc cop for rubocop

See merge request !10382

Closes gitaly#166

Closes gitaly#168

#22303 fix mode representation git::tree ( in base 8 )

Closes #22303

See merge request !9780

fix spelling CI_REPOSITORY_URL (line:355) gitab-ci-token to gitlab-ci-token.

See merge request !10409

Introduce "polling_interval_multiplier" as application setting

Closes #29759

See merge request !10280

Pass Gitaly 'Repository' messages to workhorse for Git HTTP

Closes gitaly#148

See merge request !10343

Fix GitHub importer for PRs of deleted forked repositories

Closes #29541

See merge request !9992

Fix race condition where a namespace would be deleted before a project was deleted

Closes #30334 and #30306

See merge request !10389

Fix a few N+1 queries identified by Bullet

See merge request !10361

Fix warning when trying to clone repo that already existed

See merge request !10367

Implement module for setting "Poll-Interval" response header.
Return 429 in ETag caching middleware when polling is disabled.

Fix a transient failure caused by FFaker

Closes #30211

See merge request !10404

Relax constraint on Wiki IDs, since subdirectories can contain spaces

Closes #30357

See merge request !10396

Add a wait_for_ajax call to ensure Todos page cleans up properly

See merge request !10398

Fixes method not replacing URL parameters correctly

Closes #30264

See merge request !10351

Fix redirection after login when the referer have params

Closes #29669

See merge request !10397