Update LibMan documentation date to December 2025

Update ms.date

Author: wadepickett

aspnetcore/client-side/libman/libman-vs.md

@@ -4,7 +4,7 @@ author: wadepickett
 description: Learn how to use LibMan in an ASP.NET Core project with Visual Studio.
 ms.author: wpickett
 ms.custom: mvc
-ms.date: 08/20/2018
+ms.date: 12/03/2025
 uid: client-side/libman/libman-vs
 ---
 # Use LibMan with ASP.NET Core in Visual Studio