Add metrics tagging to the sidekiq middleware

What does this MR do?

This MR will add support for metrics tagging in the sidekiq middleware. This should be used to support multiples grouping in the performance dashboards.

Are there points in the code the reviewer needs to double check?

Why was this MR needed?

We currently do not have enough information to pinpoint certain performance caveats.

Does this MR meet the acceptance criteria?

• Changelog entry added, if necessary
• Documentation created/updated
• API support added
• Tests added for this feature/bug
• Review
  • Has been reviewed by UX
  • Has been reviewed by Frontend
  • Has been reviewed by Backend
  • Has been reviewed by Database
• Conform by the merge request performance guides
• Conform by the style guides
• Squashed related commits together

What are the relevant issue numbers?

This should help squash #35914 (closed)