Currently, we store bookkeeping information for the elasticsearch index
in sidekiq jobs. There are four types of information:

* Backfill indexing for repositories
* Backfill indexing for database records
* Incremental indexing for repositories
* Incremental indexing for database records

The first three use elasticsearch bulk requests when indexing. The last
does not.

This commit introduces a system that uses bulk requests when indexing
incremental changes to database records. This is done by adding the
bookkeeping information to a Redis ZSET, rather than enqueuing sidekiq
jobs for each change. A Sidekiq cron worker takes batches from the ZSET
and submits them to elasticsearch via the bulk API.

This reduces the responsiveness of indexing slightly, but also reduces
the cost of indexing, both in terms of the load on Elasticsearch, and
the size of the bookkeeping information.

Since we're using a ZSET, we also get deduplication of work for free.

Remove blocking issue radio inputs from "Add an epic" form

Closes #207455

See merge request gitlab-org/gitlab!26003

Fix broken specs depending on UnauthorizedError

Closes #208290

See merge request gitlab-org/gitlab!26080

Added a condition when a ticket is moved from the closed list

Closes #25550

See merge request gitlab-org/gitlab!25899

Fix cherry pick icon

See merge request gitlab-org/gitlab!26009

This error was just renamed to ForbiddenError and there was a conflict

Add filepath to release_links API

See merge request gitlab-org/gitlab!25533

Part of https://gitlab.com/gitlab-org/gitlab/issues/27300

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/25512

Allow users to assign a serverless domain to Knative (Backend)

See merge request gitlab-org/gitlab!21436

Remove admin user count from Users statistics

See merge request gitlab-org/gitlab!25337

Add permission check to suggest pipeline tour

See merge request gitlab-org/gitlab!25847

Clarify "private" visibility for projects.

See merge request gitlab-org/gitlab!25852

Change back internal API return code

Closes #208253

See merge request gitlab-org/gitlab!26063

Version Control for Snippets: Access Rights Check for project snippet

See merge request gitlab-org/gitlab!23492

- needed to qualify the spec

- only initiate the tour entry point
  based on if this feature exists and if
  user has proper permissions.

Auto stop review app environments

See merge request gitlab-org/gitlab!26047

Fix scoped label text color when background is light

See merge request gitlab-org/gitlab!26037

Rename 'spammable' to 'target'

See merge request gitlab-org/gitlab!25392

Do not fail CI when Danger fails for now

Closes #208282

See merge request gitlab-org/gitlab!26071

Remove Service#template?

See merge request gitlab-org/gitlab!25979

Add information about the docs repo pipeline

Closes gitlab-docs#481

See merge request gitlab-org/gitlab!24952

Changing to location-action style, changing to
active voice, simplifying, from suggestions.

Until we fix https://gitlab.com/gitlab-org/gitlab/issues/208282.
Signed-off-by: Rémy Coutable <remy@rymai.me>

Fix name in the API error tracking spec

See merge request gitlab-org/gitlab!26022

In https://gitlab.com/gitlab-org/gitlab/-/merge_requests/25936
we align the return code for the same error to be 403.

Nevertheless, it seems the internal API needs it to be
401, otherwise, the custom error message won't be shown.

Resolve Migrate '.fa-spinner' to '.spinner' for 'app/views/ide'

See merge request gitlab-org/gitlab!25022

Improves test assertion to check on the right text span

Improve readability for light color scoped labels

Update GitLab Packages

See merge request gitlab-org/gitlab!26000

Add param update to vue issuables list

Closes #35453

See merge request gitlab-org/gitlab!25502

Convert branches-select component to jest

Closes #204800

See merge request gitlab-org/gitlab!25954

Update the code review guide to take the Merge Results in account

See merge request gitlab-org/gitlab!25449

Update the docs monthly release process

See merge request gitlab-org/gitlab!25977

Use Workhorse acceleration on Project Import file upload

See merge request gitlab-org/gitlab!25361

This is related to API endpoints only, UI endpoints
(Import::GitlabProjectsController) will be accelerated
in the next, separate MR.
Since we are touching an existing API, we should deploy it gradually.
So this MR will support both accelerated and "vanilla"
uploads for the endpoint.

GraphQL fields should generally be nullable

See merge request gitlab-org/gitlab!26001

Add debugging to see output when profiler_spec fails

See merge request gitlab-org/gitlab!26015