Pull new sample code (#34386)

Author: guardrex

aspnetcore/blazor/includes/js-interop/js-collocation.md

@@ -50,7 +50,7 @@ Add the following script after the Blazor script ([location of the Blazor start
 @code {
     private string? result;
 
-    public async void ShowPrompt()
+    public async Task ShowPrompt()
     {
         result = await JS.InvokeAsync<string>(
             "showPrompt1", "What's your name?");

aspnetcore/blazor/javascript-interoperability/call-dotnet-from-javascript.md

@@ -5,7 +5,7 @@ description: Learn how to invoke .NET methods from JavaScript functions in Blazo
 monikerRange: '>= aspnetcore-3.1'
 ms.author: riande
 ms.custom: mvc
-ms.date: 11/12/2024
+ms.date: 12/17/2024
 uid: blazor/js-interop/call-dotnet-from-javascript
 ---
 # Call .NET methods from JavaScript functions in ASP.NET Core Blazor
@@ -757,7 +757,7 @@ public class GenericType<TValue>
     }
 
     [JSInvokable]
-    public async void UpdateAsync(TValue newValue)
+    public async Task UpdateAsync(TValue newValue)
     {
         await Task.Yield();
         Value = newValue;