When Sidekiq schedules a job to be run later, it sets the `at` field
with the desired time and inserts the payload into the `scheduled`
queue. Sidekiq runs a separate thread that polls this queue via a Redis
`zrangebyscore` command and inserts jobs that have passed the scheduled
time. Sidekiq uses a random delay that is based on the number of
processes running at a given time.

We observed that this enqueuing of scheduled jobs can add an unexpected,
significant delay and increase CPU utilization on Redis as more Sidekiq
processes connect. Before we can make any tweaks to this configuration,
we should first measure how much delay we have.

This commit adds a `enqueue_latency_s` for scheduled jobs to record how
long this delay was. In the Sidekiq client middleware, we have access to
the `at` field before it is deleted by Sidekiq, so we save it as the
`scheduled_at` field. We subtract the difference between `enqueued_at`
and `scheduled_at` and log `enqueue_latency_s`.

Relates to
https://gitlab.com/gitlab-com/gl-infra/scalability/-/issues/1179

Changelog: added

Doc Consistency: operations/incident_management

See merge request gitlab-org/gitlab!71595

Doc Consistency: operations - product intelligence

See merge request gitlab-org/gitlab!71600

Replace instances of e.g. with for example

See merge request gitlab-org/gitlab!71558

Docs consistency edits for Metrics

See merge request gitlab-org/gitlab!71597

Doc consistency edits for Release

See merge request gitlab-org/gitlab!71598

Doc consistency edits for Monitor

See merge request gitlab-org/gitlab!71599

Move state machine from GroupMember to Member

See merge request gitlab-org/gitlab!71257

Merge branch '321706-fix-error-message-inviting-to-disallowed-email-address-when-restrict-membership-by-domain-is' into 'master'

Change modal error message for restricted emails

See merge request gitlab-org/gitlab!61425

Merge branch '334237-feature-flag-rollout-of-specialized_worker_for_project_transfer_auth_recalculation' into 'master'

Use specialized worker to refresh authorizations on project transfer by default

See merge request gitlab-org/gitlab!70356

Prevent Workhorse panics when Geo proxy URL is unset

See merge request gitlab-org/gitlab!71285

Fix version histories

Allow removal of cloud licenses

See merge request gitlab-org/gitlab!71481

Added severity icons to widget extension

See merge request gitlab-org/gitlab!71550

Add step to test modified sshd_config before restarting SSH daemon

See merge request gitlab-org/gitlab!71250

Delete unused EE CSS

See merge request gitlab-org/gitlab!71566

When the Geo Rails API intends to disable the proxying functionality,
like for example not being a secondary anymore, or the Rails feature
flag is disabled, an empty URL will be returned.

This prevents the empty, invalid URL from getting parsed and resulting
in panics because of it.

Changelog: changed
EE: true

[ci skip]

GitLab UI integration branch for Upgrade BootstrapVue v2.19.0

See merge request gitlab-org/gitlab!71401

Merge branch '334234-feature-flag-rollout-of-specialized_worker_for_project_share_update_auth_recalculation' into 'master'

Use specialized worker to refresh authorizations on project-group share update by default

See merge request gitlab-org/gitlab!70361

Update Content Editor Packages

See merge request gitlab-org/gitlab!71543

Merge branch '230755-tabs-haml-migrate-app-views-projects-branches-index-html-haml-to-gltabs' into 'master'

Migrate branches nav from Bootstrap tabs to GlTabs

See merge request gitlab-org/gitlab!71461

With this change, we will be using a specialized
worker to refresh authorizations whenever a
project-group share is updated.

Changelog: performance

- Update obsolete snapshots
- Update GlFormRadioGroup instances to use
changed event

Adding note to docs for the CI/CD Tunnel being unsupported with omnibus

See merge request gitlab-org/gitlab!70590

Dependency proxy TTL policy docs

See merge request gitlab-org/gitlab!71417

Remove outdated GitLab version mentions

See merge request gitlab-org/gitlab!71338

Merge branch '332643-combine-access-expires-and-expiration-into-one-column-on-group-members-table' into 'master'

Remove "Access expires" column from group/project members list

See merge request gitlab-org/gitlab!70702