Additional style and wording updates from recent Install change

See merge request gitlab-org/gitlab!50620

Improve GraphQL style guide docs

See merge request gitlab-org/gitlab!50641

Remove tier badging from doc links on index page

See merge request gitlab-org/gitlab!50637

Configure sampler intervals via environment variables

See merge request gitlab-org/gitlab!50625

This is useful for development but also to more easily
change these values in production.

Update language re. docs for disabled FFs

See merge request gitlab-org/gitlab!47917

Increase the diff limit

See merge request gitlab-org/gitlab!50572

Minor typo on the "Renaming queues"

See merge request gitlab-org/gitlab!50643

Creates new on-demand scans routes

See merge request gitlab-org/gitlab!50469

Add a quick action for /rebase

See merge request gitlab-org/gitlab!49800

Add the NuGet group level API

See merge request gitlab-org/gitlab!48356

Re using the shareable nuget endpoint
Add related specs

Resolve "OnboardingUserAddedWorker fails frequently"

See merge request gitlab-org/gitlab!50622

Remove users#show.json completely

See merge request gitlab-org/gitlab!49670

Refactor coverage report service

See merge request gitlab-org/gitlab!50424

This commit refators our coverage report service to prepare
our new codequality service which will be introduced in a
follow up.

Copy vulnerability level details from handbook page to docs

See merge request gitlab-org/gitlab!49581

- Add a link to services from 'writing resolvers'
- Add note that mutation resolve methods should be thin
- Add note that all mutation fields should be nullable.

See also the previous merge request 48712:
7https://gitlab.com/gitlab-org/gitlab/-/merge_requests/48712Signed-off-by: Takuya Noguchi <takninnovationresearch@gmail.com>

Use upstream version of pg_query again

See merge request gitlab-org/gitlab!50638

The upstream gem has incorporated all the necessary changes--namely ARM
support and SHA256 verification of libpg_query--so we can now switch
back to the official gem.

CHANGELOG: https://github.com/lfittl/pg_query/blob/master/CHANGELOG.md

Diff: https://github.com/lfittl/pg_query/compare/v1.2.0..v1.3.0

Remove nil code-owners-section condition

See merge request gitlab-org/gitlab!50631

Delete tier references from index list.

Clarify how to download sast report artifact in UI

See merge request gitlab-org/gitlab!50585

- Creates `new` and `edit` routes for on-demand scans
- Creates the `dast_saved_scans` feature flag
- Changees the `On-demand Scans` nav item to point the `new` route when
the feature flag is enabled

Remove FF ci_seed_block_run_before_workflow_rules

See merge request gitlab-org/gitlab!50595

Update cluster-applications to v0.37.0

See merge request gitlab-org/gitlab!50548

when adding a member to a project, now
correctly pass the namespace_id

This documents the use of /rebase for merge requests.

Also move rebase functionality into `MergeRequests::UpdateService` to
ensure merges/rebases are handled in the same location.

Since /rebase and /merge actions are not atomic, we may run into
confusing race conditions if these are applied together. For now, we
just ignore the /merge and proceed with the rebase.

This will make it easier for people to bring their merge requests
up-to-date.