Revert CA suppression; required for .NET 6 SDK

Author: commonsensesoftware

src/AspNet/WebApi/src/Asp.Versioning.WebApi/Dispatcher/HttpResponseExceptionFactory.cs

@@ -1,5 +1,7 @@
 // Copyright (c) .NET Foundation and contributors. All rights reserved.
 
+#pragma warning disable CA2000 // Dispose objects before losing scope
+
 namespace Asp.Versioning.Dispatcher;
 
 using System.Globalization;