fix compile error on Unity 2021.1

Scripts/Utils.cs

@@ -245,7 +245,7 @@ namespace Coffee.UIParticleExtensions
             }
         }
 
-#if !UNITY_2020_3_OR_NEWER
+#if !UNITY_2020_3_OR_NEWER || UNITY_2021_1
         public static T GetComponentInParent<T>(this Component self, bool includeInactive) where T : Component
         {
             if (!self) return null;