Fix namespace

Author: MackinnonBuck

src/Identity/Core/src/Passkeys/AuthenticatorSelectionCriteria.cs

@@ -1,7 +1,7 @@
 // Licensed to the .NET Foundation under one or more agreements.
 // The .NET Foundation licenses this file to you under the MIT license.
 
-namespace Microsoft.AspNetCore.Identity.Passkeys;
+namespace Microsoft.AspNetCore.Identity;
 
 /// <summary>
 /// Used to specify requirements regarding authenticator attributes.

src/Identity/Core/src/Passkeys/PublicKeyCredentialCreationOptions.cs

@@ -2,7 +2,6 @@
 // The .NET Foundation licenses this file to you under the MIT license.
 
 using System.Text.Json;
-using Microsoft.AspNetCore.Identity.Passkeys;
 
 namespace Microsoft.AspNetCore.Identity;