Null Version in RestResponse<T>

[biasso]

Describe the bug
RestResponse<T> always has a null Version.

To Reproduce

using RestSharp;

var client = new RestClient();
var request = new RestRequest("https://dummyjson.com/products/1");

var response = await client.ExecuteAsync(request);
Console.WriteLine($"Version {response.Version}"); // Version 1.1

var response2 = await client.ExecuteAsync<object>(request);
Console.WriteLine($"Version {response2.Version}"); // Version (null)

Expected behavior
RestResponse<T> should have Version set.

Desktop (please complete the following information):

• OS: all
• .NET version: all
• Version: 110.2.0

Additional context
The version is not copied from the RestResponse in this method: https://github.com/restsharp/RestSharp/blob/dev/src/RestSharp/Response/RestResponse.cs#L35