Add Sidekiq job latency to transaction metrics.

What does this MR do?

Add Sidekiq job latency to the current metric transaction

Why was this MR needed?

To measure latency of the Sidekiq jobs

What are the relevant issue numbers?

Related with #18663 (moved)

Does this MR meet the acceptance criteria?

• CHANGELOG entry added
• [ ] Documentation created/updated
• [ ] API support added
• Tests
  • Added for this feature/bug
  • All builds are passing
• Conform by the style guides
• Branch has no merge conflicts with master (if you do - rebase it please)
• Squashed related commits together