Update MediaBrowser.Controller/Lyrics/LyricResponse.cs

Co-authored-by: Niels van Velzen <nielsvanvelzen@users.noreply.github.com>

MediaBrowser.Controller/Lyrics/LyricResponse.cs

@@ -15,5 +15,5 @@ public class LyricResponse
     /// <summary>
     /// Gets or sets Lyrics.
     /// </summary>
-    public IEnumerable<Lyric>? Lyrics { get; set; }
+    public IEnumerable<Lyric> Lyrics { get; set; }
 }