Properly handle multiple X-Forwarded-For addresses in runner IP

Closes #58103

See merge request gitlab-org/gitlab-ce!25511

docs: Fix misspellings in docs

See merge request gitlab-org/gitlab-ce!25505

Signed-off-by: Takuya Noguchi <takninnovationresearch@gmail.com>

Remove convertPermissionToBoolean() from common_utils.js

See merge request gitlab-org/gitlab-ce!25454

Remove convertPermissionToBoolean() from common_utils.js (EE-port)

See merge request gitlab-org/gitlab-ee!9649

Docs: fix url of pipeline status badge

See merge request gitlab-org/gitlab-ce!25404

Update minimum ruby version to 2.5.

See merge request gitlab-org/gitlab-ce!25496

https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/24624 extracted
the X-Forwarded-For address directly, but this didn't consider the case
where multiple proxies are in the chain. To fix this, we use the Rails
implementation to filter trusted proxies, as documented by Grape:
https://github.com/ruby-grape/grape#remote-ip

Closes https://gitlab.com/gitlab-org/gitlab-ce/issues/58103

EE Allow Gitaly N+1 in MR CreationsController

Closes #9917

See merge request gitlab-org/gitlab-ee!9671

Refactor params for NotesActions

Closes #54924

See merge request gitlab-org/gitlab-ce!25278

Removes unneeded params from permitted list

This also fixes commenting on commits with a hash starting with a large
number

Docs serverless updates

See merge request gitlab-org/gitlab-ce!25497

Merge branch '58062-tracing-url-template-render-using-string-format-does-not-play-well-with-urls' into 'master'

Switch back to using regexps in tracing_url_template

Closes #58062

See merge request gitlab-org/gitlab-ce!25491

Fixes a master failure due to a reduction in
the accepted Gitaly query count.

Merge branch 'docs-serverless-updates' of gitlab.com:gitlab-org/gitlab-ce into docs-serverless-updates

Fix header links in PG and Redis HA/Scaling docs

See merge request gitlab-org/gitlab-ee!9668

Docs: add details about restricted SSH keys

Closes #50489

See merge request gitlab-org/gitlab-ce!25478

Add an index page to admin area section

Closes #55234

See merge request gitlab-org/gitlab-ce!25375