UseUnityServiceProvider does not work on WebApplicationBuilder - .NET 6.0 (Asp.Net Core)

[VHeddoori]

I've migrated from .NET Core 3.1 to .NET6.0 WebAPI using the guidelines provided by Microsoft. I'm using UnityContainer as DependencyInjection framework. I observe that the Unity dependencies are loaded in the componentManager.SharedUnityContainer but are not passed on the WebApplication builder API's.

Below is the migrated code snippet.

 var pathToExe = Process.GetCurrentProcess().MainModule.FileName;
 var pathToContentRoot = Path.GetDirectoryName(pathToExe);

 var config = new ConfigurationBuilder()
    .SetBasePath(pathToContentRoot)
    .AddJsonFile("appsettings.json", optional: true, reloadOnChange: true)
    .Build();

 var path = config["AppFolder:DeviceLogs"];
 StartupLog.Intialise(path);
 StartupLog.Log(string.Format("Base Path {0}", pathToContentRoot));

 string basicConfigFile = Path.Combine(pathToContentRoot, "Configuration", "unity.basic.config");
 var configurationBuilder = new ConfigurationBuilder()
       .AddJsonFile("appsettings.json");
 IConfiguration configuration = configurationBuilder.Build();

 componentManager.Configure(basicConfigFile, null);
 componentManager.RegisterType<IInfrastructureServices, InfrastructureServices>(ComponentLifetime.Singleton);

 var options = new WebApplicationOptions
 {
     Args = args,
     ContentRootPath = WindowsServiceHelpers.IsWindowsService()
                          ? AppContext.BaseDirectory : default
 };
 var builder = WebApplication.CreateBuilder(options);
 builder.WebHost.UseUnityServiceProvider(componentManager.SharedUnityContainer);
 builder.WebHost.UseKestrel();
 builder.Services.AddConfiguration(configuration);
 builder.Services.AddMvc();
 builder.Services.AddControllers();
 builder.Configuration.AddConfiguration(configuration);
 var app = builder.Build();

 var infraServices = componentManager.Resolve<IInfrastructureServices>();
 infraServices.Initialize(componentManager);
 infraServices.UpdateDefaultValues(componentManager.Resolve<IDataManagerFactory>());
 _ = new CodeSignatureVerification(infraServices.Logger);

 app.UseHsts();
 app.UseRouting();
 app.UseHttpsRedirection();
 app.UseEndpoints(endpoints =>
 {
     endpoints.MapControllers();
 });

 app.Run();