Update Higu Ch.4 script ver

 - See https://github.com/07th-mod/himatsubushi/releases/tag/v7.1.5

Author: drojf

versionData.json

@@ -57,7 +57,7 @@
 		"id" : "Himatsubushi Ch.4/full",
 		"files":[
 			{"id": "base",                "version": "1.0.0"},
-			{"id": "script",              "version": "7.1.4"},
+			{"id": "script",              "version": "7.1.5"},
 			{"id": "ui-windows",          "version": "1.3.0"},
 			{"id": "ui-unix",             "version": "1.3.0"},
 			{"id": "restore-bgm-se",      "version": "1.0.0"}