Add warning dialog when users click "Merge immediately" merge train option

Closes #12679

See merge request gitlab-org/gitlab!20054

Link to suggested community contributions

See merge request gitlab-org/gitlab!21345

Add security configuration navigation item

See merge request gitlab-org/gitlab!20711

This commit adds a new navigation item to the main navigation. It
sits within a project's "Security & Compliance" submenu and
links to the security configuration screen.

Increase experiment ratio

See merge request gitlab-org/gitlab!21303

Add the command for restarting GitLab helm chart

See merge request gitlab-org/gitlab!20214

Add new help text to sentry settings

Closes #34058

See merge request gitlab-org/gitlab!20663

Update eslint-plugin-import from 2.16.0 to 2.18.2 (/spec/javascripts/ide)

See merge request gitlab-org/gitlab!21304

Fix misleading comment

See merge request gitlab-org/gitlab!21255

Resolve "Document  - Make using GitLab auth with Vault easy" - documentation

Closes #9983

See merge request gitlab-org/gitlab!19980

Add changelog

Fix pipeline retry in a CI DAG

Closes #36068

See merge request gitlab-org/gitlab!21296

Refinements to the intro section

See merge request gitlab-org/gitlab!21217

Keyset pagination on primary key

See merge request gitlab-org/gitlab!21194

This commit adds a warning dialog after the user clicks the "merge
immediately" merge train option asking them to confirm their choice.

This dialog contains a link to the documentation as well as some text
about why merging immediately may not be the best choice.

Resolve "Add "updated_after" parameter to the Pipelines API endpoint"

Closes #33099

See merge request gitlab-org/gitlab!21133

Allow raw blobs to be served from an external storage

See merge request gitlab-org/gitlab!20936

Use `without_count` for audit event records paginated with `paginate_without_counts`

See merge request gitlab-org/gitlab!21232

* API::Helpers::Pagination#paginate only exposes offset pagination
* API::Helpers::Pagination#paginate_and_retrieve! supports both types

I wanted to make it explicit that keyset pagination returns an array
instead of a relation. This does not match the behavior of offset
pagination, hence not mixing those in #paginate.

Previously a retried pipeline for builds in a DAG would cause the newly-
created builds to sit in the created state because it would be waiting
for the dependencies to trigger it. However, in the retry case, the
dependencies may have already completed, so they will never trigger new
builds.

We fix this by:

1. Looking up successful builds with the required names
2. Passing those build IDs to `Ci::ProcessPipelineService` to trigger
   builds with those dependencies.

Closes https://gitlab.com/gitlab-org/gitlab/issues/36068

Refactor project API helpers

Closes #37919

See merge request gitlab-org/gitlab!21130

Update eslint-plugin-import from 2.16.0 to 2.18.2 (/ee/app/assets/javascripts/pages)

See merge request gitlab-org/gitlab!20996

This is in line with what we document:
https://docs.gitlab.com/ee/api/README.html#status-codes

This aligns with offset pagination, where we also allow up to 100
records max.

This is the squashed together change from
https://gitlab.com/gitlab-org/gitlab/merge_requests/19623
that had been reverted previously.

Based on the refactoring in
https://gitlab.com/gitlab-org/gitlab/merge_requests/21130

Update eslint-plugin-import from 2.16.0 to 2.18.2 (/ee/spec/javascripts/feature_flag)

See merge request gitlab-org/gitlab!20946

It works the same way as https://gitlab.com/gitlab-org/gitlab/merge_requests/14846:

It consists of two parts:

1. Redirecting users to the configured external storage
1. Allowing the external storage to request the static object(s)
   on behalf of the user by means of specific tokens

Related to https://gitlab.com/gitlab-com/gl-infra/scalability/issues/4

only for CE-specific contents under /spec/javascripts/ide

This change adds .without_count to queries of records
that will be paginated using paginate_without_counts,
so that a count query is not triggered during pagination.

Update into doc about feature toggle check process

See merge request gitlab-org/gitlab!20960

Detailed description about how to check feature flags in Gitaly project
with GDK.

Resolve "Add missing popover and remove "none" in MR widget"

Closes #37952

See merge request gitlab-org/gitlab!21095

- Update All Members to be Any eligible user