Client requests use incomplete URL resulting in failure

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Describe the bug

Ruby SDK does not properly generate a request URL, leaving out scheme and hostname. The http client library, Typhoeus, is unable to attempt the request because of this.

Reproducing the bug

Make a registration flow request using the SDK as documented. See relevant log output. Note the effective_url should include a scheme and hostname as well. The answer is somewhere near this URL builder in the generated code.

Relevant log output

Processing by Kratos::RegistrationController#index as */*
  Parameters: {"flow"=>"87e5fcbd-0ae4-44c6-9720-cf516bad181c"}
Calling API: V0alpha2Api.get_self_service_registration_flow ...
Closing connection -1
ETHON: performed EASY effective_url=/self-service/registration/flows?id=87e5fcbd-0ae4-44c6-9720-cf516bad181c response_code=0 return_code=url_malformat total_time=0.0
HTTP response body ~BEGIN~

~END~
Error when calling Kratos V0alpha2Api->get_self_service_registration_flow: URL using bad/illegal format or missing URL
HTTP status code: 0

Relevant configuration

No response

Version

0.8.0.alpha2

On which operating system are you observing this issue?

macOS

In which environment are you deploying?

Docker Compose

Additional Context

I've also tested version 0.7.6.alpha7