make perfect incompatible with autopilot

osu.Game.Rulesets.Osu/Mods/OsuModPerfect.cs

@@ -3,11 +3,14 @@
 
 #nullable disable
 
+using System;
+using System.Linq;
 using osu.Game.Rulesets.Mods;
 
 namespace osu.Game.Rulesets.Osu.Mods
 {
     public class OsuModPerfect : ModPerfect
     {
+        public override Type[] IncompatibleMods => base.IncompatibleMods.Concat(new Type[] { typeof(OsuModAutopilot) }).ToArray();
     }
 }