Use Accept header in HTTP requests

[jelcaf]

What is the expected feature or enhancement?

This Accept header allows the client to indicate to the server the content types it can handle in the response, which is crucial when interacting with APIs that can return multiple response formats.

It seems that currently we are sending 'Accept': '*/*' or in some cases like when we create a Job we are not sending a value for this header.

Acceptance criteria

• Send Accept header as application/json if the response expected is a dictionary or list, unless the user specifies a different value.