Update Higu Ch.4 script ver

 - See https://github.com/07th-mod/watanagashi/releases/tag/v5.2.2

Author: drojf

versionData.json

@@ -20,7 +20,7 @@
 		"id" : "Watanagashi Ch.2/full",
 		"files":[
 			{"id": "base",                "version": "1.0.0"},
-			{"id": "script",              "version": "5.2.1"},
+			{"id": "script",              "version": "5.2.2"},
 			{"id": "ui-windows",          "version": "1.3.0"},
 			{"id": "ui-unix",             "version": "1.3.0"},
 			{"id": "restore-bgm-se",      "version": "1.0.0"}