Add origin as part of `redirect_to.action_controller` Instrumentation

Requesting to extend an existing feature

I would like to add ‘origin’ to the ‘redirect_to.action_controller’ instrumentation. This change will allow subscribers to the notification to report on both where we are going and where we are coming from

A real world use case for this, we have a lot of developers in our code base and would like to know when someone is using redirect_to and dropping utm_campaign query params in the process.

Please open the PR.


Thanks for all you do for rails Rafael