Workflows - allow setting headers in response

I'm currently only able to control the HTTP code and JSON body of the response, but I'd also like to set headers. For example, I'd like to return 302 and the new location.

Hey @APD! Thanks for the request. We currently have an internal feature request logged and you've been added there. It's not on the near term roadmap, but we'll update this topic when there is any further information to share.