fix: try fix connection

Author: Yushu2606

src/Program.cs

@@ -4,6 +4,11 @@
 
 builder.Services.AddGrpc(options => options.EnableDetailedErrors = true);
 
+builder.WebHost.ConfigureKestrel(serverOptions =>
+    serverOptions.ListenAnyIP(5000, listenOptions =>
+        listenOptions.Protocols =
+            Microsoft.AspNetCore.Server.Kestrel.Core.HttpProtocols.Http2));
+
 using WebApplication app = builder.Build();
 
 app.MapGrpcService<BestsService>();