For source installs, running `rake gitlab:setup` will fail with this
error:

```

$ bundle exec rake gitlab:setup RAILS_ENV=production
rake aborted!
ActiveRecord::StatementInvalid: PG::UndefinedTable: ERROR: relation
"features" does not exist LINE 8: WHERE a.attrelid =
'"features"'::regclass
```

This happens because the setup Rake task does the following:

1. Checks that Gitaly servers are up
2. The gRPC message attempts to send the activated feature flags
in the metadata.
3. However, since the `features` table doesn't exist, this fails.

To fix this, we just return an empty set if neither the database nor the
`features` table exists.

Closes https://gitlab.com/gitlab-org/gitlab/-/issues/212759

Make all HTTPS cookies set SameSite to none

Closes #212551

See merge request gitlab-org/gitlab!28205

Update Repository Analytics feature title

See merge request gitlab-org/gitlab!28162

This replaces the deprecated feature name of Contribution Charts with
the new feature name of Repository Analytics.

Docs: Add troubleshooting of id and app changes

See merge request gitlab-org/gitlab!28170

Add Swift Dockerfile to GitLab templates

See merge request gitlab-org/gitlab!28035

Fix oauth check to verify user exists

See merge request gitlab-org/gitlab!28159

Prevent adding changelog ID on security MRs

See merge request gitlab-org/gitlab!28251

Add parent-child pipeline relationship spec

See merge request gitlab-org/gitlab!27606

Test cases for dependent relationship
Test cases for independent relationship

95c0aa51 introduced a new conditional on
changelog Dangerfile that is been triggered on security MRs. This commit
fixes that, as it's not a requirement to add a merge request ID on
changelogs for security merge requests.

Resolve "MR right sidebar is off when scrollbars are visible"

Closes #196226

See merge request gitlab-org/gitlab!27314

Some users reported being logged out quite frequently, and we suspect
a change in Chrome caused this.

Chrome v80, rolled out in March 2020, treats any cookies without the
SameSite directive set as though they are SameSite=Lax
(https://www.chromestatus.com/feature/5088147346030592). This is a
breaking change from the previous default behavior, which was to treat
those cookies as SameSite=None.

To fix this, we add a middleware that tags all cookies with the Secure
and SameSite=None headers. This middleware is needed until we upgrade to
Rack v2.1.0+
(https://github.com/rack/rack/commit/c859bbf7b53cb59df1837612a8c330dfb4147392)
and a version of Rails that has native support
(https://github.com/rails/rails/commit/7ccaa125ba396d418aad1b217b63653d06044680).

Closes https://gitlab.com/gitlab-org/gitlab/-/issues/212551

Add guard for nil merge_request_diff.id

See merge request gitlab-org/gitlab!28034

Harden  jira usage data

See merge request gitlab-org/gitlab!27973

Add restriction for updating nginx-ingress

See merge request gitlab-org/gitlab!27845

Migrate ee/billings to Jest

Closes #194270

See merge request gitlab-org/gitlab!28193

Add service to checksum PackageFiles on primary

Closes #13838

See merge request gitlab-org/gitlab!25411

This adds the functionality in a context of new
self-service framework

Refactor compare analyser reports service tests

See merge request gitlab-org/gitlab!28207

Move AlertsController to Core

Closes #210537

See merge request gitlab-org/gitlab!28091

Re-structure Analytics documentation index

See merge request gitlab-org/gitlab!28153

Previously the Analytics documentation index was built around the
Analytics Workspace concept. It did not sufficiently explain features
located outside the Workspace. Plus, we are moving away from the
Workspace concept anyway. This re-structures the Analytics
documentation index into 3 sections: instance (Workspace), group and
project levels. The Analytics features available are explained.

Find or initialize instance-level services

See merge request gitlab-org/gitlab!28033

Add state attribute to environment graphql API

See merge request gitlab-org/gitlab!28080

Add Performance/ReadlinesEach Cop

See merge request gitlab-org/gitlab!27901

Create vulnerability issue link when creating issue from vulnerability

See merge request gitlab-org/gitlab!27899

This adds to First Class Vulnerabilities automatic creation of issue
link when Issue is created from Vulnerability.

Add additional pipeline information to packages list api endpoint

See merge request gitlab-org/gitlab!28040

Add documentation for importing large exports to the list

See merge request gitlab-org/gitlab!27113

License compliance documentation: removing deprecated and update classifications

See merge request gitlab-org/gitlab!27978

Make Danger less verbose about commit messages

See merge request gitlab-org/gitlab!26587

Sort Value Stream Analytics event names

See merge request gitlab-org/gitlab!28005

Add Nat Gateways to Networking section

See merge request gitlab-org/gitlab!28082

De-duplicate usage data EE specs

See merge request gitlab-org/gitlab!27953