The old implementation of LimitedCapacity::Worker relies on querying
the number of jobs enqueued for the worker it applies to. In
https://gitlab.com/groups/gitlab-com/gl-infra/-/epics/447 we are
working towards a situation where you can no longer get this number
from Sidekiq (in an efficient way, at least).

This commit changes the capacity checking logic to only use the set of
"running jobs". The capacity check now happens in exactly one place,
namely LimitedCapacity::Worker#perform.
LimitedCapacity::Worker.perform_with_capacity now always schedules
max_running_jobs jobs. Sometimes these will be no-ops but that is OK,
we expect less than 0.01 no-op jobs per second on GitLab.com.

Geo::ReverificationBatchWorker uses the LimitedCapacity::Worker
concern. For that concern to work correctly, we must periodically
reschedule jobs and perform cleanup by calling perform_with_capacity.
Before this commit, we were never calling perform_with_capacity on
Geo::ReverificationBatchWorker, meaning we never ran the cleanup code.
This commit fixes that by replacing perform_async with
perform_with_capacity.

This updates the remaining_work_count method on two Geo workers that
use LimitedCapacity::Worker. The purpose of remaining_work_count is to
tell LimitedCapacity::Worker if there is work to be done. Whether
there is work to be done should not depend on how busy Sidekiq is.

I think this makes the code easier to read.

Add migration to swap partitioned web_hook_logs

See merge request gitlab-org/gitlab!60184

Update Gitaly version

See merge request gitlab-org/gitlab!60269

Provide a column to grouped COUNT query

See merge request gitlab-org/gitlab!59897

Highlight paid features during active trial - Part 3

See merge request gitlab-org/gitlab!58827

- Add popover component with more details about the paid feature being
  highlighted
- Track an event whenever the popover is shown
- Do not show the popover on smaller screen sizes
- Only show the tooltip on smaller screen sizes

Geo Node Status 2.0 - helpPagePath Cleanup

See merge request gitlab-org/gitlab!60164

Stop using json shema gem in test [RUN AS-IF-FOSS]

See merge request gitlab-org/gitlab!58661

Clean up initial data parsing in /buy_minutes route

See merge request gitlab-org/gitlab!59660

Rename License#cloud? to License#cloud_license?

See merge request gitlab-org/gitlab!60065

Resolves rubocop offense Rails/WhereEquals [RUN AS-IF-FOSS]

See merge request gitlab-org/gitlab!58067

Add new issue type for requirements

See merge request gitlab-org/gitlab!59868

Quarantine a flaky test

See merge request gitlab-org/gitlab!60260

Resolves rubocop offense Style/RescueStandardError

See merge request gitlab-org/gitlab!57923

Use Poll-based axios request even on one-shot request in note actions.js

See merge request gitlab-org/gitlab!59656

Externalize strings in  application_settings/_signin.html.haml

See merge request gitlab-org/gitlab!58066

Update dependency eslint to v7.25.0

See merge request gitlab-org/gitlab!60224

Feature flag removal [RUN ALL RSPEC] [RUN AS-IF-FOSS]

See merge request gitlab-org/gitlab!60053

Enable `check_maven_path_first` by default

See merge request gitlab-org/gitlab!60142

Update Usage Ping Metrics - SLA

See merge request gitlab-org/gitlab!60047

Docs explain how Windows and Powershell works fine for git

See merge request gitlab-org/gitlab!57459

Resolves rubocop offense Style/RedundantBegin

See merge request gitlab-org/gitlab!58017

Fix Rails/SaveBang offenses in spec/frontend

See merge request gitlab-org/gitlab!57909

Fix Rails/SaveBang offenses in ee/spec/workers

See merge request gitlab-org/gitlab!58070

Doc: add event params for Jenkins CI service API

See merge request gitlab-org/gitlab!59990