Errors should not always print the request body

[falmanna]

Hey,

I am trying to prevent 'Request Body' from getting printed when there is an error, and seems like AxAIServiceError class always includes the body data not matter what.

Request body may contain sensitive data or large bas64 encoded data that should not be printed, and I think this should be configurable in the library.

[google-labs-jules]

Jules is on it. When finished, you will see another comment and be able to review a PR.

[google-labs-jules]

Ready for a review! A PR has been created.

[dosco]

expose this as a config in axai

[falmanna]

@dosco it seems like this is still not exposed in axai