Bump sidekiq from 5.2.7 to 6.0.4 (#11727)

* Bump sidekiq from 5.2.7 to 6.0.0

Bumps [sidekiq](https://github.com/mperham/sidekiq) from 5.2.7 to 6.0.0.
- [Release notes](https://github.com/mperham/sidekiq/releases)
- [Changelog](https://github.com/mperham/sidekiq/blob/master/Changes.md)
- [Commits](https://github.com/mperham/sidekiq/compare/v5.2.7...v6.0.0)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

* Sidekiq::Logger.logger -> Sidekiq.logger

* Drop support Ruby 2.4

* update

Co-authored-by: dependabot-preview[bot] <27856297+dependabot-preview[bot]@users.noreply.github.com>
Co-authored-by: Yamagishi Kazutoshi <ykzts@desire.sh>

Gemfile

@@ -84,7 +84,7 @@ gem 'mario-redis-lock', '~> 1.2', require: 'redis_lock'
 gem 'rqrcode', '~> 1.1'
 gem 'ruby-progressbar', '~> 1.10'
 gem 'sanitize', '~> 5.1'
-gem 'sidekiq', '~> 5.2'
+gem 'sidekiq', '~> 6.0'
 gem 'sidekiq-scheduler', '~> 3.0'
 gem 'sidekiq-unique-jobs', '~> 6.0'
 gem 'sidekiq-bulk', '~>0.2.0'