cli: investigate a way to get API URLs from the specification

[BrunoRosendo]

Currently, there's no way to retrieve URLs from the API specification, so they're just hard-coded (see this comment). The objective is to investigate if there is a better way to handle this type of situations and change them where needed.

[BrunoRosendo]

From what I could tell, the swagger client also just hardcodes the path and path templates coming from the openapi spec. For example, this operation only defined the PathPattern as a literal and doesn't provide it in any other way. So I'm not sure if this is possible here. I'll try to check the client generation options