* bug(go) gRPC status codes were getting overwritten by the handlers
**Problem**
* If the gRPC handlers received an error with a gRPC status code from checkHosts, it got overwritten by a plain error value.
**Solution**
* Added a check to each checkHosts call that passes on the error received (with its gRPC status)
**Testing**
* Added new unit tests for when the handlers receive an error from checkHosts with a status code.
* Existing unit tests and terraform tests passed
Matt Romanelli
bed5cf8f82