Technical debt maintenance: Removes most of the code for the deprecated
`service templates` feature. The code for the `PropagateServiceTemplateWorker`
and its tests are untouched.

Changelog: other

Update protected branch merge access for security policy project

See merge request gitlab-org/gitlab!66369

RackAttack: extend basic authentication detection for rate limiting

See merge request gitlab-org/gitlab!63287

Detects the following forms of basic authentication in addition:
* <username>:<password>
* <username>:<personal_access_token>
* <username>:<lfs_token>

Changelog: fixed

[ci skip]

Skip already downloaded LFS objects in mirror updates

See merge request gitlab-org/gitlab!66340

Add Container Registry API test to preprod

See merge request gitlab-org/gitlab!62183

Merge branch '330932-vulnerabilities-jira-integration-doesn-t-work-with-jira-next-gen-projects' into 'master'

Handle team-managed (next-gen) Jira projects

See merge request gitlab-org/gitlab!66250

Clean up unneeded ui class

See merge request gitlab-org/gitlab!66393

Always use generated queue name for worker matching

See merge request gitlab-org/gitlab!66285

Move some conceptual material to main page and other minor improvements

See merge request gitlab-org/gitlab!66137

Adjust trial registration page heading for experiment

See merge request gitlab-org/gitlab!66207

Clarify sidekiq negate setting

See merge request gitlab-org/gitlab!66412

Remove disable Sidekiq cluster docs

See merge request gitlab-org/gitlab!66411

Refactor external storage admin area configuration UI and docs

See merge request gitlab-org/gitlab!66219

Refactor polling interval multiplier configuration UI and docs

See merge request gitlab-org/gitlab!66342

Group token HTTP authentication

See merge request gitlab-org/gitlab!65788

Replace legacy stage table with updated stage table

See merge request gitlab-org/gitlab!66189

New cop to enforce using new GraphQL types

See merge request gitlab-org/gitlab!66289

instead of old ones

Resolve "Syntax highlighting has wrong inline background on darkmode"

See merge request gitlab-org/gitlab!66410

Remove badge cache from home panel

See merge request gitlab-org/gitlab!65638

Support blank string for RAILS_RELATIVE_URL_ROOT

See merge request gitlab-org/gitlab!65974

Set up the performance marks and measures

See merge request gitlab-org/gitlab!66359

GDK defaulted to `/` but that has issues with some gems because that is
not a valid relative root so we want to change the GDK default to an
empty string.

This changes our rackup file to handle a blank string properly.

Change the place of scheduling the `StoreReportsWorker`

See merge request gitlab-org/gitlab!66299

Add helper methods for extending and reactivating trial

See merge request gitlab-org/gitlab!66040

Resolve "Background migration cleanup process"

See merge request gitlab-org/gitlab!65698

Fix spam checking to consider updater of issue instead of author

See merge request gitlab-org/gitlab!66408

When an issue or some other issauble is updated, we previously would
check whether the original author was the support bot instead of the
user who updated this issue. As a result, the spam check would be
triggered unnecessarily and causing spam logs to be attributed to the
support bot.

Relates to https://gitlab.com/gitlab-org/gitlab/-/issues/335971

Changelog: fixed

A helper to ensure that sidekiq and pending tracked jobs are processed.
Optionally delete successful tracked job rows.

Add conditional to fix error when creating or deleting a board list

See merge request gitlab-org/gitlab!66297

Changelog: fixed

Use direct SQL to generate internal ids

See merge request gitlab-org/gitlab!65590