JSS Server ConfigurationResolver patch. For JSS 11 (GA), on both Sitecore 9.0.2 and 9.1

patch.config

<configuration xmlns:patch="http://www.sitecore.net/xmlconfig/">
  <sitecore>
    <services>
      <configurator
        type="Sitecore.JavaScriptServices.CustomConfiguration.RegisterDependenciesPatch, [YOUR DLL NAME HERE]"
        patch:after="*[@type='Sitecore.JavaScriptServices.Configuration.RegisterDependencies, Sitecore.JavaScriptServices.Configuration']" />
    </services>
  </sitecore>
</configuration>

RegisterDependenciesPatch.cs

using System.Linq;
using Microsoft.Extensions.DependencyInjection;
using Sitecore.DependencyInjection;
using Sitecore.JavaScriptServices.Configuration;

namespace Sitecore.JavaScriptServices.CustomConfiguration
{
    public class RegisterDependenciesPatch : IServicesConfigurator
    {
        public void Configure(IServiceCollection serviceCollection)
        {
            var toRemove = serviceCollection.FirstOrDefault(d => d.ServiceType == typeof(IConfigurationResolver));
            serviceCollection.Remove(toRemove);
            serviceCollection.AddSingleton<IConfigurationResolver, ConfigurationResolver>();
        }
    }
}