NadekoBot.Extensions should now be fully annotated with nullable reference types as well as many classes from NadekoBot.Common

src/NadekoBot/Modules/Music/Common/Impl/RedisTrackCacher.cs

@@ -1,5 +1,4 @@
-#nullable enable
-using System.Runtime.CompilerServices;
+using System.Runtime.CompilerServices;
 using System.Text.Json;
 using StackExchange.Redis;
 
@@ -202,4 +201,4 @@ public sealed class RedisTrackCacher : ITrackCacher
 
         return val;
     }
-}
+}