Implement Response Information of the new Streaming API #48
Description
With Faraday v2.5.0, a new streaming API has been introduced which allows adapters to provide response information to the on_call block. Acknowledging that not all adapters will implement this change immediately, the adapter specification skipped the related tests in the initial release of this change.
When async-http-faraday adapter implemented streaming with 38ec627 the response information part was not implemented. It seems that popular Faraday implementations now expect the streaming API to provide response information.
To adapt to the future specification requirement and accommodate the expectations of the implementations let's implement response information in streaming.