This updates to `@gitlab/eslint-plugin@6`, which includes breaking
changes via the transitive dependency `eslint-plugin-vue` being upgraded
from v6 to v7.

This adds/improves various lint rules of Vue files; the full changes are
documented in their [release post][1]. The most notable addition is the
`vue/no-mutating-props` rule, which can help to prevent subtle runtime
bugs.

For several of the new/changed rules, the GitLab codebase has a number
of violations. Rather than fixing all of them in this change, those new
rules are disabled (e.g., `vue/no-mutating-props`), and the changed
rules are reconfigured to mimic v6 settings (e.g.,
`vue/order-in-components`).  This way, these can be addressed/fixed
separately in follow ups.

Otherwise, one-off violations, (e.g., of `vue/require-render-return`)
have been fixed here.

There were a few odd findings during this process that might suggest
upstream bugs:

1. The `vue/one-component-per-file` rule finds what seems to be only
   false positives in this codebase, e.g.,
   `~/registry/explorer/components/list_page/cli_commands.vue`; it
   _seems_ like the `Tracking.mixin` call is being considered as another
   component definition(?).
2. Three rules were violated by the line
   `spec/frontend/clusters/components/applications_spec.js:547`:
   `@gitlab/vue-require-required-key`, `vue/require-default-prop` and
   `vue/require-prop-type-constructor.` This is odd, because no Vue
   component was being defined or constructed there. Changing a `props`
   field to `propsData` resolved all three.

Addresses https://gitlab.com/gitlab-org/gitlab/-/issues/296868, part of
https://gitlab.com/groups/gitlab-org/-/epics/5142.

[1]: https://github.com/vuejs/eslint-plugin-vue/releases/tag/v7.0.0

Update Gitaly version

See merge request gitlab-org/gitlab!51138

Add RateLimit-* headers to RackAttack responses

See merge request gitlab-org/gitlab!50833

Update the Danger status docs after recent changes

See merge request gitlab-org/gitlab!51120

Documentation: Correct CI Job Token feature concept

See merge request gitlab-org/gitlab!50920

This commit corrects the wrong documentation.

Update reference architecture docs to use Patroni

See merge request gitlab-org/gitlab!50573

Starting from 13.7 PG12 is the default version
for new installs and upgrades
Repmgr is deprecated
Signed-off-by: Nailia Iskhakova <niskhakova@gitlab.com>

Fix error: Could not find a matching version of package

See merge request gitlab-org/gitlab!50614

Expectation: after created a project under a user and invited groups, we can install composer package with with group ID.
Bug: we are not able to install composer package with with group ID.
Resolution: created a project under groups.

Add ee metrics yml file for usage data metrics definition

See merge request gitlab-org/gitlab!50990

Merge branch '270107-add-metrics-yml-file-for-usage-data-metrics-definition-add-documentation' into 'master'

Add documentation for metrics definition

See merge request gitlab-org/gitlab!50770

Follow-up for "POC: Search general settings"

See merge request gitlab-org/gitlab!51111

Speed up EE project helpers by using let_it_be for project factory

See merge request gitlab-org/gitlab!48891

Update Gitaly version

See merge request gitlab-org/gitlab!51128

Docs: clean up some Vale substitution warnings

See merge request gitlab-org/gitlab!51049

Fix branch name overflows in profile activity section

See merge request gitlab-org/gitlab!50975

Add link to GitLab HAR recorder

See merge request gitlab-org/gitlab!50996

Document UI methods of running an active DAST scan

See merge request gitlab-org/gitlab!50816

Validate GraphQL queries [RUN AS-IF-FOSS]

See merge request gitlab-org/gitlab!50655

Populate On-demand Scan profiles using query params

See merge request gitlab-org/gitlab!50749

Update gitlab.com availability in Compliance documentation

See merge request gitlab-org/gitlab!51010

See https://gitlab.com/gitlab-org/gitlab/-/merge_requests/50172

Docs: fix typo in csv_export.md

See merge request gitlab-org/gitlab!51033

Spread CI minutes reset from 8 to 24 hours

See merge request gitlab-org/gitlab!51084

Persist `squash_commit_sha` when squashing

See merge request gitlab-org/gitlab!50178

Fix 2.7 warning for sidekiq_middleware_spec.rb

See merge request gitlab-org/gitlab!51093

Add Jekyll GitLab Pages E2E smoke spec

See merge request gitlab-org/gitlab!44653

Add Sentry to graph_component_wrapper

See merge request gitlab-org/gitlab!50787

For `search_settings_in_page`

- We can simply wait for the method (no need for wait_for_promises)
- `mockReset` isn't needed due to jest config