Added Timeout to HttpClient to always be longer than the InvocationTimeoutMilliseconds.

HttpClient defaults to 100 seconds. If InvocationTimeoutMilliseconds is greater than the default of the HttpClient, the task will fail with a Task was canceled exception.

src/Microsoft.AspNetCore.NodeServices/HostingModels/HttpNodeInstance.cs

@@ -50,6 +50,7 @@ namespace Microsoft.AspNetCore.NodeServices.HostingModels
                 options.DebuggingPort)
         {
             _client = new HttpClient();
+            _client.Timeout = TimeSpan.FromMilliseconds(options.InvocationTimeoutMilliseconds + 1000);
         }
 
         private static string MakeCommandLineOptions(int port)