In preparation for https://github.com/spring-cloud/spring-cloud-stream-binder-rabbit/issues/290 SCSt is not set up to receive a `Message<Message<?>>`. Similar to the kafka endpoint, add the batched headers in a header.
In preparation for https://github.com/spring-cloud/spring-cloud-stream-binder-rabbit/issues/290 SCSt is not set up to receive a `Message<Message<?>>`. Similar to the kafka endpoint, add the batched headers in a header.