[Bug]: Refit's settings with contentSerializer and urlParameterKeyFormatter parameters, when using at the same time doesn't work

[navernoe]

Describe the bug 🐞

I was need to send post request with body, serialized with some json options, so when I was adding refit-client I've added this RefitSettings in it:

        var jsonOptions = new JsonSerializerOptions()
        {
            Converters = { new JsonStringEnumMemberConverter() },
            PropertyNamingPolicy = JsonNamingPolicy.CamelCase
        };
        var refitSettings = new RefitSettings(
              new SystemTextJsonContentSerializer(jsonOptions)
            );
        services
            .AddRefitClient<IMyClient>(refitSettings)
            .ConfigureHttpClient(c =>
            {
                c.BaseAddress = new Uri("http://myclienturl");
            });

And all was good, request via refit-client worked as it was expected.

But a few time later, there was a need to add settings for url parameter's keys, then I've updated refit settings, adding urlParameterKeyFormatter to it like this:

        var refitSettings = new RefitSettings(
              new SystemTextJsonContentSerializer(jsonOptions),
            urlParameterKeyFormatter: new CamelCaseUrlParameterKeyFormatter());

And formatting for url parameter's keys is working now as well, BUT - the first setting for content serialization was broken, and it doesn't work when urlParameterKeyFormatter is added to refit settings.
I checked it once again - when I remove urlParameterKeyFormatter setting, then setting for content serialization starts to work, and its stops to work when I turn back urlParameterKeyFormatter setting.

Step to reproduce

1. Create refit-client with settings

 var jsonOptions = new JsonSerializerOptions()
        {
            Converters = { new JsonStringEnumMemberConverter() },
            PropertyNamingPolicy = JsonNamingPolicy.CamelCase
        };
        var refitSettings = new RefitSettings(
              new SystemTextJsonContentSerializer(jsonOptions),
              urlParameterKeyFormatter: new CamelCaseUrlParameterKeyFormatter()
            );
        services
            .AddRefitClient<IMyClient>(refitSettings)
            .ConfigureHttpClient(c =>
            {
                c.BaseAddress = new Uri("http://myclienturl");
            });  

public interface IMyClient
{
    [Post("/Actions/Test")]
    Task<TestResponse> TestMethod(TestRequest request);
}

public record TestRequest 
{
    public string TestRequestProp { get; set; }
}

public record TestResponse
{
    public string TestResponseProp { get; set; }
}

2 Send POST request to client, that receives body's content only in lowerCamelCase casing.
4. See that client will return error

Reproduction repository

https://github.com/reactiveui/refit

Expected behavior

This should happen...
The next Refit's settings should work for both - url parameter's keys and content serialization

        var jsonOptions = new JsonSerializerOptions()
        {
            Converters = { new JsonStringEnumMemberConverter() },
            PropertyNamingPolicy = JsonNamingPolicy.CamelCase
        };
        var refitSettings = new RefitSettings(
              new SystemTextJsonContentSerializer(jsonOptions),
            urlParameterKeyFormatter: new CamelCaseUrlParameterKeyFormatter());
            
        services
            .AddRefitClient<IMyClient>(refitSettings)
            .ConfigureHttpClient(c =>
            {
                c.BaseAddress = new Uri("http://myclienturl");
            });

Screenshots 🖼️

No response

IDE

Rider Windows

Operating system

No response

Version

No response

Device

No response

Refit Version

7.1.2

Additional information ℹ️

No response