EE port of https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/30635/

See merge request gitlab-org/gitlab-ee!14830

* Limits raw requests to 300 per minute and per raw path.
* Add a new attribute to ApplicationSettings so user can change this
value on their instance.
* Uses Gitlab::ActionRateLimiter to limit the raw requests.
* Add a new method into ActionRateLimiter to log the event into auth.log

Related to https://gitlab.com/gitlab-org/gitlab-ce/issues/48717

Hide "Buy additional minutes" button for self-managed installs

Closes #12864

See merge request gitlab-org/gitlab-ee!14826

Resolves confusion within spec rake tasks.

See merge request gitlab-org/gitlab-ce!31073

Remove project param from `#show_label_issuables_link?`

Closes #62217

See merge request gitlab-org/gitlab-ce!31038

Update author prefix on merge request notification

See merge request gitlab-org/gitlab-ce!31057

Remove ignore rule for ProjectAutoDevops#domain

See merge request gitlab-org/gitlab-ce!30989

Optimise import performance

Closes #64924

See merge request gitlab-org/gitlab-ce!31045

EE: Optimise import performance

See merge request gitlab-org/gitlab-ee!14794

Add Outbound requests whitelist for local networks

See merge request gitlab-org/gitlab-ce!30350

Signed-off-by: Istvan szalai <istvan.szalai@savoirfairelinux.com>

Add Outbound requests whitelist for local networks

See merge request gitlab-org/gitlab-ee!14712

Signed-off-by: Istvan szalai <istvan.szalai@savoirfairelinux.com>

Use a base class for Peek views

See merge request gitlab-org/gitlab-ce!31108

This button only pertains to GitLab.com, so it should not be seen
by other installations.

Closes https://gitlab.com/gitlab-org/gitlab-ee/issues/12864

Resolve "Remove `pluralize` in favour of `n__`"

Closes #63553

See merge request gitlab-org/gitlab-ce!30882

Replaced instance of the `pluralize` js function
with `n__` to follow our development guide.

EE 63553 remove pluralize in favour of n__

See merge request gitlab-org/gitlab-ee!14743

Replaced instance of the `pluralize` js function
with `n__` to follow our development guide.

Remove unused peek view code

See merge request gitlab-org/gitlab-ce!31099

Remove unused peek view code

See merge request gitlab-org/gitlab-ee!14822

Remove feature flag for tablesample counts

See merge request gitlab-org/gitlab-ce!31048

https://gitlab.com/gitlab-org/gitlab-ce/issues/58792

Update tooltip values to meet design specs

Closes gitlab-ui#264

See merge request gitlab-org/gitlab-ce!30981

Introduce a `DetailedView` base class, which is inherited by
the Gitaly, Redis, and Rugged views. This reduces code duplication.

Followup edit of documentation

See merge request gitlab-org/gitlab-ce!30986

Increase the Review App deploy command timeout to 15 minutes

Closes #64998

See merge request gitlab-org/gitlab-ce!31061

- Fix `O(n)` complexity of `append_or_update_attribute`,
  we append objects to an array and re-save project
- Remove the usage of `keys.include?` as it performs `O(n)`
  search, instead use `.has_key?`
- Remove the usage of `.keys.first` as it performs a copy
  of all keys, instead use `.first.first`

- Fix `O(n)` complexity of `append_or_update_attribute`,
  we append objects to an array and re-save project
- Remove the usage of `keys.include?` as it performs `O(n)`
  search, instead use `.has_key?`
- Remove the usage of `.keys.first` as it performs a copy
  of all keys, instead use `.first.first`

Remove OAuth GitHub CI/CD project code paths

See merge request gitlab-org/gitlab-ce!30716