[unity] Fixed Unity defines, see #2101.

spine-unity/Assets/Spine/Editor/spine-unity/Editor/Utility/SpineBuildProcessor.cs

@@ -36,14 +36,14 @@
 #define HAS_ON_POSTPROCESS_PREFAB
 #endif
 
-#if !(UNITY_2020_3_1 || UNITY_2020_3_2 || UNITY_2020_3_3 || UNITY_2020_3_4 || UNITY_2020_3_5 || UNITY_2020_3_6 || UNITY_2020_3_7 || UNITY_2020_3_8 || UNITY_2020_3_9 || UNITY_2020_3_10 || UNITY_2020_3_11 || UNITY_2020_3_12 || UNITY_2020_3_13 || UNITY_2020_3_14 || UNITY_2020_3_15)
+#if (UNITY_2020_3 && !(UNITY_2020_3_1 || UNITY_2020_3_2 || UNITY_2020_3_3 || UNITY_2020_3_4 || UNITY_2020_3_5 || UNITY_2020_3_6 || UNITY_2020_3_7 || UNITY_2020_3_8 || UNITY_2020_3_9 || UNITY_2020_3_10 || UNITY_2020_3_11 || UNITY_2020_3_12 || UNITY_2020_3_13 || UNITY_2020_3_14 || UNITY_2020_3_15))
 #define UNITY_2020_3_16_OR_NEWER
 #endif
-#if !(UNITY_2021_1_1 || UNITY_2021_1_2 || UNITY_2021_1_3 || UNITY_2021_1_4 || UNITY_2021_1_5 || UNITY_2021_1_6 || UNITY_2021_1_7 || UNITY_2021_1_8 || UNITY_2021_1_9 || UNITY_2021_1_10 || UNITY_2021_1_11 || UNITY_2021_1_12 || UNITY_2021_1_13 || UNITY_2021_1_14 || UNITY_2021_1_15 || UNITY_2021_1_16)
+#if (UNITY_2021_1 && !(UNITY_2021_1_1 || UNITY_2021_1_2 || UNITY_2021_1_3 || UNITY_2021_1_4 || UNITY_2021_1_5 || UNITY_2021_1_6 || UNITY_2021_1_7 || UNITY_2021_1_8 || UNITY_2021_1_9 || UNITY_2021_1_10 || UNITY_2021_1_11 || UNITY_2021_1_12 || UNITY_2021_1_13 || UNITY_2021_1_14 || UNITY_2021_1_15 || UNITY_2021_1_16))
 #define UNITY_2021_1_17_OR_NEWER
 #endif
 
-#if (UNITY_2020_3 && UNITY_2020_3_16_OR_NEWER) || UNITY_2021_1_17_OR_NEWER
+#if UNITY_2020_3_16_OR_NEWER || UNITY_2021_1_17_OR_NEWER
 #define HAS_SAVE_ASSET_IF_DIRTY
 #endif