Fix multipart attachments not uploading

Closes gitlab-ee#9035

See merge request gitlab-org/gitlab-ce!24170

Add API Support for Kubernetes integration

Closes #40473

See merge request gitlab-org/gitlab-ce!23922

Require Knative to be installed only on an RBAC kubernetes cluster

See merge request gitlab-org/gitlab-ce!23807

Mixing and matching the use of Rack::Request and ActionDispatch::Request
in Rails 5 is bad, particularly if you have middleware that
manipulates or accesses environment variables.

`Gitlab::Middleware::Multipart` attempts to rewrite request parameters
to the proper values (e.g. replacing `data_file` with
`UploadedFile`). It does this by calling `Rack::Request#update_params`,
which essentially updates `env['rack.request.form_hash']`.

By changing to `ActionDispatch::Request`, the Go middleware was causing
the request parameters to be stored inside
`env['action_dispatch.request.request_parameters']`. Later calls to
`Rack::Request#update_params` would not have any effect because it would
attempt to update `env['rack.request.form_has']` instead of
`env['action_dispatch.request.request_parameters']`. As a result, the
controller still saw the old parameters.

Since the Go middleware appears to be using `ActionDispatch::Request`
for authorization methods, we can switch the multipart middleware to
use it too.

Closes https://gitlab.com/gitlab-org/gitlab-ee/issues/9035

Fix broken master api_variables test

See merge request gitlab-org/gitlab-ce!24165

[ci skip]

Merge branch '4553-geo-hashed-storage-migration-failure-does-not-log-to-sentry-or-geo-log-well-ee' into 'master'

Backport of https://gitlab.com/gitlab-org/gitlab-ee/merge_requests/8926

See merge request gitlab-org/gitlab-ce!24129

Adds the following initial CRUD endpoints for Clusters API:

- GET list of clusters
- GET specific cluster
- POST add existing cluster (mimic of "Add cluster")
- PUT update cluser
- DELETE destroy cluster

Closes https://gitlab.com/gitlab-org/gitlab-ce/issues/40473

Support new report syntax for common vulnerabilities (CE backport)

See merge request gitlab-org/gitlab-ce!23962

Update serverless extension to yml

See merge request gitlab-org/gitlab-ce!24163

Backport of https://gitlab.com/gitlab-org/gitlab-ee/merge_requests/8926

Fixes broken link

See merge request gitlab-org/gitlab-ce!24161

Fix deprecation: returning false in Active Record and Active Model callbacks

See merge request gitlab-org/gitlab-ce!24134

This MR also removes other reports and uses one common set of fixtures
for all test types.

Add project code view permissions

See merge request gitlab-org/gitlab-ce!24158

Don't ignore conflicts in db/schema.rb

See merge request gitlab-org/gitlab-ce!24152

Expose `CI_API_V4_URL` CI/CD variable

Closes #54621

See merge request gitlab-org/gitlab-ce!23936

Improve documentation about only except default values

Closes #55699

See merge request gitlab-org/gitlab-ce!24016

Include templates

Closes #53445

See merge request gitlab-org/gitlab-ce!23495

It's not entirely clear to me why we were ignoring db/schema.rb in the
first place, but this should not be done now that we merge CE into EE
automatically. Doing so can lead to changes being thrown away in the
event of a conflict, which can then lead to EE pipelines failing.

Don't ingore the `gitlab.pot` in ee_compat_check

See merge request gitlab-org/gitlab-ce!24151

Guarantee visually correct order of runners on the "Admin Area > Runners" page

Closes #49791

See merge request gitlab-org/gitlab-ce!21627

Documentation for Release page MVC

Closes #41766

See merge request gitlab-org/gitlab-ce!23901

If there are new strings in CE, they need to be added to EE
manually. As the `locale/gitlab.pot` file can't be merged
automatically during the upstream merge.

This rewrites a syntax to allow include of templates.
This also normalises the syntax used by include: feature

Support asset links creation in `POST /projects/:id/release`

See merge request gitlab-org/gitlab-ce!24056

Mark references to openshift template as deprecated

See merge request gitlab-org/gitlab-ce!24092

Update @gitlab/svgs to latest version

See merge request gitlab-org/gitlab-ce!24148