Add NOT NULL constraint to gitlab_subscriptions namespace_id

See merge request gitlab-org/gitlab!54319

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.

Use workhorse 8.65.0

See merge request gitlab-org/gitlab!55843

Update Gitaly version

See merge request gitlab-org/gitlab!55969

Container Registry Metadata Database

See merge request gitlab-org/gitlab!43754

Fix typos in report findings spec

See merge request gitlab-org/gitlab!55323

Spread shared runner minute reset to 8h

See merge request gitlab-org/gitlab!55802

New Crowdin translations - 05 Mar 2021

See merge request gitlab-org/gitlab!55921

Update alerts list to fail gracefully on GraphQL failure

See merge request gitlab-org/gitlab!55817

- update tests

Update Gitaly version

See merge request gitlab-org/gitlab!55950

Add a container_registry project feature

See merge request gitlab-org/gitlab!54831

[ci skip]

[ci skip]

Remove illustration in export/import CSV modal

See merge request gitlab-org/gitlab!54136

Show API errors when a command-only comment fails

See merge request gitlab-org/gitlab!55457

Fix broken master: Use UTC for shift times calculated in specs

See merge request gitlab-org/gitlab!55961

Rename "CYCLE_ANALYTICS_*" variables in spec with "VSA_*"

See merge request gitlab-org/gitlab!52609

Delete redundant test

See merge request gitlab-org/gitlab!55703

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

See merge request gitlab-org/gitlab!55304

Mv related_issuable_input_spec from ee to ce

See merge request gitlab-org/gitlab!55923

Update a testcase link for E2E specs

See merge request gitlab-org/gitlab!55851

Signed-off-by: Nailia Iskhakova <niskhakova@gitlab.com>

Last edits and bug fixes

See merge request gitlab-org/gitlab!55898

Related to: https://gitlab.com/gitlab-org/gitlab/-/issues/323546

This changeset is systematically generated.
Signed-off-by: Takuya Noguchi <takninnovationresearch@gmail.com>

Add context for tag push to slack mattermost tests

See merge request gitlab-org/gitlab!55512

Docs: Make EFS warning vendor agnostic

See merge request gitlab-org/gitlab!55382

Show log of SQL statements in QueryLimiting middleware error messages

See merge request gitlab-org/gitlab!55630

Fix outdated links in DS docs

See merge request gitlab-org/gitlab!55857

Merge branch '323647-mismatching-and-misaligned-checkboxes-in-the-merge-request-widget' into 'master'

Resolve "Mismatching and misaligned checkboxes in the merge request widget"

See merge request gitlab-org/gitlab!55905