Support sharded Sidekiq in Geo Rake tasks

Michael Kozonorequested to merge
mk/support-sharded-sidekiq-in-geo-tasks into master

What does this MR do and why?

Support sharded Sidekiq in Geo tasks

Resolves #461530 (closed)

Resolves #463717 (closed)

MR acceptance checklist

Please evaluate this MR against the MR acceptance checklist. It helps you analyze changes to reduce risks in quality, performance, reliability, security, and maintainability.

How to set up and validate locally

Numbered steps to set up and validate the change are strongly suggested.

  • Run on primary site rake gitlab:geo:prevent_updates_to_primary_site
  • Run on secondary site rake gitlab:geo:wait_until_replicated_and_verified

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