Update the background migration helpers to enqueue background jobs
for the target tracking database. For now we default to using main for
all migrations, since we don't have additional databases yet.

This changes not only enqueuing operations, but other related functions
like stealing scheduled jobs from the queue.

Fix test permanently

See merge request gitlab-org/gitlab!77202

Fix trial banner styling

See merge request gitlab-org/gitlab!77004

Remove the default branch name in the search result page tip

See merge request gitlab-org/gitlab!76880

Add information about security report validation

See merge request gitlab-org/gitlab!77085

Connect mutation for security training configuration

See merge request gitlab-org/gitlab!76570

Read running builds from denormalized table upon assignment

See merge request gitlab-org/gitlab!77104

Add --local when setting jh/Gemfile

See merge request gitlab-org/gitlab!77222

Blob refactor: Display LFS badge when LFS enabled

See merge request gitlab-org/gitlab!77165

Allow LDAP failover

See merge request gitlab-org/gitlab!77000

Add `short_sha` and `ref_path` to `PipelineType` (GraphQL)

See merge request gitlab-org/gitlab!72591

Changelog: added
MR: https://gitlab.com/gitlab-org/gitlab/-/merge_requests/72591

Refactor form sections

See merge request gitlab-org/gitlab!76919

Add workItemTypes field to GraphqQL GroupType

See merge request gitlab-org/gitlab!76803

New Crowdin translations - 17 December 2021

See merge request gitlab-org/gitlab!77053

Changelog: performance

Fixes: https://gitlab.com/gitlab-org/gitlab/-/issues/139
Changelog: added

Avoid DB calls in MultiStore empty DB case guard

See merge request gitlab-org/gitlab!77180

Use `Arel::Nodes::ValuesList`  in `EffectiveAccessLevelFinder`

See merge request gitlab-org/gitlab!77089

Log pipeline tags size

See merge request gitlab-org/gitlab!77112

Add active sync to security configuration tab

See merge request gitlab-org/gitlab!77178

Do not delete_from_all_tables after rake specs

See merge request gitlab-org/gitlab!76961

Issue: https://gitlab.com/gitlab-org/gitlab/-/issues/347414

Truncate alerts for large Prometheus payloads when FF is enabled

See merge request gitlab-org/gitlab!77168

Due to a bug we always returned an empty list even if alerts were
created.

This commit adds a new ops feature flag :prometheus_notify_max_alerts
which limits to amount of processable alerts in a single Prometheus
payload.

When enabled, it truncates incoming alerts if the amount of
alerts in the provided Prometheus payload exceeds 100.

Changelog: fixed

Variables are a global keyword in gitlab-ci.yml

See merge request gitlab-org/gitlab!77182