Fixed: Error changing artist metadata profile

src/NzbDrone.Core/Music/Model/Album.cs

@@ -1,8 +1,8 @@
 using System;
 using System.Collections.Generic;
 using System.Linq;
+using System.Text.Json.Serialization;
 using Equ;
-using Newtonsoft.Json;
 using NzbDrone.Common.Extensions;
 using NzbDrone.Core.Datastore;