[ci] fix adapters client testing

[tosterberg]

Description

Now that response codes are coming back with non-200 values the send_json functions error handling is now occurring prior to and outside of the adapters test handler. Refactored to allow send_json to throw errors, and handle catches appropriately.

• If this change is a backward incompatible change, why must this change be made?
• Interesting edge cases to note here