The route `/uploads/:namespace/:project/:secret/:filename` has been
around for a long time, but it duplicates the
`/:namespace/:project/uploads/:secret/:filename` route. We'll redirect
the former to the second, canonical version in preparation for removing
this route entirely later.

Previously if a user attempted to click on a link to an attachment for a
renamed project (e.g. https://gitlab-org/gitlab-ce/uploads/123.png),
Rails would redirect the user to an erroneous URL
(e.g. https://gitlab-org/gitlab-foss/uploads/123.png.png). Notice the
redirect URL contains a redundant extension.

It turns out Rails 5 parses the extension of a route as the format
(https://github.com/rails/rails/issues/28901#issuecomment-297747521),
and the URL generator appends the format to the redirected route.

To fix this, we need to disable the format path parameter and explicitly
set the format to `nil`. If we do not set the format to `nil`, the URL
generator will append a query string (e.g `?format=png`), which would
still work but not necessary.

Closes https://gitlab.com/gitlab-org/gitlab/issues/196232

Show READMEs with .txt extension

Closes #25343

See merge request gitlab-org/gitlab!21763

There are two categories of README files: markup and plain text. For some
reason, READMEs with .txt extension disappeared from the plain text category,
leaving there only READMEs without extension. This MR returns .txt READMEs into
the plain text category so that they are again recognized as README files and
rendered on a project page.

Rename 'license_scanning' artifact related methods

See merge request gitlab-org/gitlab!22309

License Management -> License Scanning

Fix order-dependent spec

Closes #196398

See merge request gitlab-org/gitlab!22851

Add quarantine tag message

See merge request gitlab-org/gitlab!22641

Add spec for adding a message to
quarantined tests

This was failing becuase container_expiration_policy was not created for
projects sometimes.

Rather than rely on that mechanismm create container_expiration_policy
directly for this spec

Update rack-cors to 1.0.6

Closes #39143

See merge request gitlab-org/gitlab!22809

Container Expiration Policies recurring jobs

See merge request gitlab-org/gitlab!21593

Add missing argument to performance bar page object method

See merge request gitlab-org/gitlab!22798

Add count argument to has_detailed_specs method
Refactor performance_bar_spec

Update Code Quality docs about the new versioning scheme

See merge request gitlab-org/gitlab!21934

Cache webpack loaders in CI

See merge request gitlab-org/gitlab!22204

Move cluster dropdown component one level up

See merge request gitlab-org/gitlab!22715

fix docs: remove duplicate `with your'

See merge request gitlab-org/gitlab!22816

Remove feature flag for import graceful failures

See merge request gitlab-org/gitlab!22707

Make Sidekiq timestamps consistently ISO 8601

Closes #194116

See merge request gitlab-org/gitlab!22750

Code Review analytics skeleton

See merge request gitlab-org/gitlab!22480

Migrate project_id dropdown tests to jest

See merge request gitlab-org/gitlab!22609

Make BackgroundMigrationWorker backward compatible

See merge request gitlab-org/gitlab!22271

Fix spacing between errors in Geo Node Cards

Closes #196075

See merge request gitlab-org/gitlab!22718

Replace usaged in geo/node/projects

https://gitlab.com/gitlab-org/gitlab/merge_requests/22718

Move common request specs into shared_examples

See merge request gitlab-org/gitlab!22428

* In preparation for the specs being reused, move them into
shared_examples.

Previously when an exception occurred in Sidekiq, Sidekiq would export
logs with timestamps (e.g. created_at, enqueued_at) in floating point
seconds, while other jobs would report in ISO 8601 format. This
inconsistency in data types would cause Elasticsearch to drop logs that
did not match the schema type (date in most cases).

This commit moves the responsibility of formatting timestamps to the
Sidekiq JSON formatter where it properly belongs. The job logger now
generates timestamps with floats, just as Sidekiq does. This ensures
that timestamps are manipulated only in one place.

See https://gitlab.com/gitlab-com/gl-infra/infrastructure/issues/8269

Fix broken shallowMount with GlModal

See merge request gitlab-org/gitlab!22797

Document propagated gemnasium db variables

See merge request gitlab-org/gitlab!22670

Clarify IE11 has no supported previous version

See merge request gitlab-org/gitlab!22343

Give identical Ruby metrics same description

See merge request gitlab-org/gitlab!22562

Enable Instance level Security Dashboard feature by default

See merge request gitlab-org/gitlab!18008

Part of the [Instance Security Dashboard MVC][1].

This adds documentation for the Instance Security Dashboard, and enables
the `security_dashboard` feature flag by default.

[1]: https://gitlab.com/gitlab-org/gitlab/issues/6953