This also introduces a generic pattern to remove N+1 queries for all
document types we index but we'll start with notes for now.

Without this we receive an exception
`undefined method `preloaded_records' for nil:NilClass`
when trying to call
`Note.includes(noteable: {assignees: []})`
if any of the notes are on a `Commit`. The reason this seems to happen
is due to a refactoring in Rails preloaders in
https://github.com/rails/rails/commit/2847653869ffc1ff5139c46e520c72e26618c199#diff-6d659f140c909c5a70850ec69eab0014834ffb371029ccf7554b6a421a1fb0ca
which expects the `#run` method to return the preloader (you can see
other examples updated to return `self`).

It is possible longer term that this may be made redundant
by some much larger refactoring happening to this code in
https://github.com/rails/rails/pull/41385 since it appears this no
longer relies on the return value of `#run`. But that is not released
yet and we may end up with more problems to solve when we upgrade to
that.

Update code_quality.md - Code Climate engine attribute

See merge request gitlab-org/gitlab!56705

Update code_quality.md - I'm a product marketing manager with SonarSource. My intention with this revision is that we (SonarSource) are ok to not get attribution for our engines (our Java, PHP & Python analyzers) and feel it is only fair that Code Climate does receive attribution/credit either.

Migration: add trial extension type to gitlab_subscription

See merge request gitlab-org/gitlab!56460

Combine tests in `gfm_autocomplete_spec.rb` for performance

See merge request gitlab-org/gitlab!56369

Replace hint destination add_remove_clusters with add_eks_clusters

See merge request gitlab-org/gitlab!56167

Fix tier badge in environments page

See merge request gitlab-org/gitlab!56786

[RUN ALL RSPEC] Show pwd hint only if pwd auth is enabled on sign-in location mail

See merge request gitlab-org/gitlab!56783

Project Settings Operations h4 Expand/Collapse 4/5

See merge request gitlab-org/gitlab!56274

Move from btn-success to btn-confirm in projects/network directory

See merge request gitlab-org/gitlab!56345

Move from btn-success to btn-confirm in projects/environments directory

See merge request gitlab-org/gitlab!56212

Adds pipeline editor link on root Ci config files

See merge request gitlab-org/gitlab!56563

- Adds pipeline editor button on root config file
- This takes the user to ci/editor on master branch by default

Add missing composer install instructions

See merge request gitlab-org/gitlab!56795

Project Settings Operations h4 Expand/Collapse 3/5

See merge request gitlab-org/gitlab!56273

Remove ci_instance_variables_ui feature flag [RUN ALL RSPEC] [RUN AS-IF-FOSS]

See merge request gitlab-org/gitlab!56255

Add Ability to Edit Freeze Periods

See merge request gitlab-org/gitlab!56407

Allows users to modify existing freeze periods within the same modal
that is used to create them. Uses a nice little higher order function to
keep the same request/receive path as adding a new freeze period.

Add btn-default class for Service Desk toggle in settings

See merge request gitlab-org/gitlab!56195

Improve `epics/gfm_autocomplete_spec.rb` spec

See merge request gitlab-org/gitlab!56389

Remove duplicate paths from an internal API serializer [RUN ALL RSPEC] [RUN AS-IF-FOSS]

See merge request gitlab-org/gitlab!55800

Test vulnerability details entry file

See merge request gitlab-org/gitlab!55443

Add iteration list docs

See merge request gitlab-org/gitlab!56646

Perhaps we should instead combine the different Add list sections
into a single one, as showing basically the same text and screenshot
for each list type doesn't seem very necessary

Refactor Labkit::Context to Gitlab::ApplicationContext

See merge request gitlab-org/gitlab!56217

Update placeholders for DAST Profile sensitive fields

See merge request gitlab-org/gitlab!56496

This updates DAST request headers and password fields
which are sensitive in nature

We're removing some duplicated fields that are no longer used by the
frontend. since it's a hard removal of the field, we're putting the
change behind a feature falg out of an abundance of caution.

Refactor stages dropdown spec to use VTU

See merge request gitlab-org/gitlab!56031

Moving the spec over to use
vue test utils and more modern
practices.

Prevent markdownlint errors

See merge request gitlab-org/gitlab!56703

Epic boards documentation

See merge request gitlab-org/gitlab!56725