[DAR-3984][External] Improved HTTP error code verbosity

[JBWilkie]

Problem

Whenever darwin-py makes an API call, it raises various exceptions in the raise_for_darwin_exception() function if the response object has an error code that needs to be raised. However, it simply raises the object itself which shows only the error code. It would be very helpful (especially for 422s) if the error text was also displayed

Solution

Display response.text as well as response when raising HTTP error codes

Changelog

Increased detail of error handling in darwin-py

[linear]

DAR-3984 Improve verbosity of `raise_for_darwin_exception()`