Unsuccessful API response variants should have serde_json::Value data

[Arnavion]

For example:

#[derive(Debug)]
pub enum CreateCustomResourceDefinitionResponse {
    Ok(crate::v1_14::apiextensions_apiserver::pkg::apis::apiextensions::v1beta1::CustomResourceDefinition),
    Created(crate::v1_14::apiextensions_apiserver::pkg::apis::apiextensions::v1beta1::CustomResourceDefinition),
    Accepted(crate::v1_14::apiextensions_apiserver::pkg::apis::apiextensions::v1beta1::CustomResourceDefinition),
    Unauthorized,
    Other,
}

However, the API server usually returns some JSON object in the response for the non-successful status codes. Currently this means users that want this value have to parse it from the response buffer, which in turn means clients have to expose the response buffer along side the parsed response type.

So it would be useful to type Unauthorized, etc as (serde_json::Value). Usually it's a Status, but that would require emitting other variants that aren't Status to be safe. In any case, a serde_json::Value can be redeserialized as a Status if the user wants that.