After add this constraint, some scenarios are not possible. So we
updated those related code and rspec together:
- Add not null constraint to gitlab_subscriptions namespace_id
- Remove always-true code logic `hosted?` from GitlabSubscription model
- Remove `context 'when namespace is absent'` since it is not possible
- Update several rspec file, to make sure create(:gitlab_subscription)
  will always have a namespace associated. So it won't break the
  not null constraint of gitlab_subscription's namespace_id.

Document permission required for time tracking

See merge request gitlab-org/gitlab!55569

Adding additional test case for upload file button

See merge request gitlab-org/gitlab!55688

Move IDE routes from VUE to Rails

See merge request gitlab-org/gitlab!55597

In this commit we move the routing responsibility for the IDE
from the Vue router to Rails. This way we can provide helpful
information instead of requesting it afterward.

Optimize the Dictionary view to not repeat same columns

See merge request gitlab-org/gitlab!55145

Enhance ref_selector component to allow for tag creation

See merge request gitlab-org/gitlab!55193

This commit updates the ref selector component with some new abilities:

- New footer slot
- New events
- Validation state
- Allow for multiple instances on the same page

Resolve "Wiki edit page: title's styling mismatch"

See merge request gitlab-org/gitlab!50940

Remove capybara specs relying on jQuery.ajax

See merge request gitlab-org/gitlab!55668

We had some capybara specs that checked whether expanding a diff calls
the Backend more than once. These specs have been broken since we are
using axios. Unfortunately as they are testing a negative, they never
failed.

We are removing those specs in favor of new JS unit tests which actually
test that the API is called exactly once.

Remove obsolete DOMContentLoadedEventListener

See merge request gitlab-org/gitlab!55618

Move the isNumeric util to the shared number_utils.js

See merge request gitlab-org/gitlab!55833

Pipeline Graph: Update header capitalization

See merge request gitlab-org/gitlab!55835

Resolve "Fix translation of visibility levels" [RUN ALL RSPEC]

See merge request gitlab-org/gitlab!55721

Move to btn-confirm from btn-success in admin/labels directory

See merge request gitlab-org/gitlab!55273

  - Remove some attributes
  - Remove table
  - Generate new dictionary

Make it clear you need at least one job

See merge request gitlab-org/gitlab!55837

Automatically set position for VSA stages

See merge request gitlab-org/gitlab!55108

Update Gitaly version

See merge request gitlab-org/gitlab!55834

Update GraphQL testing for retries

See merge request gitlab-org/gitlab!55836

Add clarification on manual jobs

See merge request gitlab-org/gitlab!55554

Refactor code coverage summary graphql resolver

See merge request gitlab-org/gitlab!55658

Move to btn-confirm from btn-success in admin/groups directory

See merge request gitlab-org/gitlab!55268

Move to btn-confirm from btn-success in views/doorkeeper directory

See merge request gitlab-org/gitlab!55277

The isNumeric function was being used in two different places. This
moves that function to a shared util and updates the places to use
the new shared util instead. It also moves the test to the shard util
as well

Move from btn-success to btn-confirm in shared/members directory

See merge request gitlab-org/gitlab!55315

Update app/views/shared/members/_invite_member.html.haml, app/views/shared/members/_invite_group.html.haml files

Changes the style of the new issue title in order
to match with the one in the wiki, which was preferred.

Add Prometheus histogram for lock retries

See merge request gitlab-org/gitlab!55614