Draft: Throttle sidekiq workers using the health checks framework

What does this MR do and why?

This is the first iteration of #404898 (closed).

In this we use the database health check framework which is being used in BBM to throttle Sidekiq workers as well.

Steps involved:

• Sidekiq worker which are database intensive should opt-in by calling perform_database_health_check!.
• A new sidekiq server middleware has been introduced to perform the db health check, on any Stop signals the job will be skipped and re-queued (with a delay of 3s).

Screenshots or screen recordings

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How to set up and validate locally

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

MR acceptance checklist

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• I have evaluated the MR acceptance checklist for this MR.

Related to #404898 (closed)