This adds the field `MergeRequest.reviewers`.

Preloads are added to account for the dependent relationships.

Our N+1 testing is improved in a bunch of ways, but removing
confounding factors that are outside the scope of the GraphQL schema,
such as authentication, license loading, and Database read-only checks.

More effort is taken here to correctly isolate the tests from each
other, ensuring we have clean request stores, SQL caches, and
batchloader contexts between runs. We ensure that we are in fact using
the SQL cache.

[ci skip]

[ci skip]

[ci skip]

Update automation instructions for DB setup

See merge request gitlab-org/gitlab!50333

Add migration to swap partitioned audit_events

See merge request gitlab-org/gitlab!47581

Add a new migration to swap the partitioned audit_events with the
original table. In preparation for this, also add a prior migration to
recreate the secondary indexes on the partitioned table.

Update .net Project Template Archive

See merge request gitlab-org/gitlab!50321

Geo - Update Patroni support documentation

See merge request gitlab-org/gitlab!49986

Rename preloads variable in GraphQL lookahead

See merge request gitlab-org/gitlab!50329

Update dependency dompurify to ^2.2.6

See merge request gitlab-org/gitlab!50324

Indicate reverted status of a merged merge request

See merge request gitlab-org/gitlab!45471

Handle listing of issues inside iteration lists and moving of issues to / from iteration lists

See merge request gitlab-org/gitlab!49946

Update Express Project Template archive

See merge request gitlab-org/gitlab!50326

Update Rails Project Template archive

See merge request gitlab-org/gitlab!50325

Refactor custom stage form specs

See merge request gitlab-org/gitlab!49651

Moves the custom stage form field specs into
a separate file and makes some major improvements
to the specs.

Also handles moving of issues to / from an iteration list

Refactor visibility_level_helper

See merge request gitlab-org/gitlab!50051

Add MR information to the diff file IDs

See merge request gitlab-org/gitlab!50132

- remove unused image
- docs changes
- ruby and haml code style improvements

Added reduce repository size link for reference

See merge request gitlab-org/gitlab!50315

Add engineering productivity maintainer to roulette capability

See merge request gitlab-org/gitlab!50356

Run test at a fixed time

See merge request gitlab-org/gitlab!50354

Spread runner CI minute reset to 8 hours

See merge request gitlab-org/gitlab!50265

Due to how HLLRedisCounter#weekly_redis_keys converts
dates to calendar week, it would result in an empty
array when the calendar week of end_date occurs before
the calendar week of start_date.

For example, given start_date 2020-12-01 and
end_date 2021-01-01, the calendar week would be reversed,
resulting in empty array from #weekly_redis_keys

Debian file metadatum

See merge request gitlab-org/gitlab!49692

Fix N+1 queries with loading group issues with GraphQL

See merge request gitlab-org/gitlab!50328

Add artifacts:public boolean

See merge request gitlab-org/gitlab!49775

- Adds artifacts:public boolean to CI YAML
- Adds :non_public_artifacts feature flag
- Adds :read_job_artifacts ability to Ci::BuildPolicy

Refactor specs around gpg_keys in users_controller_spec.rb

See merge request gitlab-org/gitlab!50337

Signed-off-by: Takuya Noguchi <takninnovationresearch@gmail.com>

Previously when group issues were queried, we called a SELECT for each
project and its associated project features to check whether the user
had permission to read the issue. We now solve this by preloading those
items unconditionally.