Fixed bug in ItemSerializer for Season 6

Setting socket bytes should be limited to the maximum number of sockets. Otherwise all other bytes are set to 0xFF.

src/GameServer/RemoteView/ItemSerializer.cs

@@ -117,7 +117,7 @@ public int SerializeItem(Span<byte> target, Item item)
         }
 
         target[6] = (byte)(GetHarmonyByte(item) | GetSocketBonusByte(item));
-        SetSocketBytes(target.Slice(7), item);
+        SetSocketBytes(target.Slice(7, MaximumSockets), item);
 
         return this.NeededSpace;
     }