Add ability to update stream destinations

What does this MR do and why?

This is the last MR of the series. In this MR we add the ability to update stream destinations in the new editor we created, using the new API.

The whole work is under use_consolidated_audit_event_stream_dest_api FF.

MR cadence:

MR	Description
!183848 (merged)	Retrieve streaming destinations from new API
!185411 (merged)	Delete streaming destinations from new API
!186450 (merged) (refactoring)	Rename stream destination editor vue component
!186456 (merged) (refactoring)	Add refactored stream destination editor vue component
!186457 (merged)	Add ability to create new stream destinations
!186647 (merged)	👈 you're here

References

• Epic: &12339
• Implementation issues: #442447 (closed) / #524939 (closed)
• FF Rollout issue: #523880 (closed)
• FF Cleanup issue: #523881

Screenshots or screen recordings

Group Destinations	Instance Destinations
update-streaming-destinations-group	update-streaming-destinations-instance

How to set up and validate locally

1. Navigate to https://gdk.test:3443/rails/features/ and turn on use_consolidated_audit_event_stream_dest_api
2. Navigate to the proper view:
   1. Instance: Your Group > Secure > Audit Events > Streams tab
   2. Group: Admin area > Monitoring > Audit Events > Streams tab
3. Create new destinations if you don't have any
4. Expand the destination from the list and update any values
5. Refresh the page to assert that the values were persisted

MR acceptance checklist

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