Fixed Green Maiden Mob ID on Endless Tower (#6132)

On Endless Tower Green Maiden must be 1519 not 1631

This information corresponds to:
https://www.divine-pride.net/database/monster/1631/green-maiden (Only on 3@tower)
https://www.divine-pride.net/database/monster/1519/green-maiden (Only on lou_dun03)

npc/instances/EndlessTower.txt

@@ -853,7 +853,7 @@ function	script	F_Tower_Monster	{
 		areamonster .@map$,181,9,191,45,"Aliza",1737,10,.@label$;
 		areamonster .@map$,181,9,191,45,"Zealotus",1200,5,.@label$;
 		areamonster .@map$,181,9,191,45,"Alice",1275,5,.@label$;
-		areamonster .@map$,181,9,191,45,"Green Maiden",1631,10,.@label$;
+		areamonster .@map$,181,9,191,45,"Green Maiden",1519,10,.@label$;
 		break;
 	case 74:
 		areamonster .@map$,267,9,277,45,"Dimik",1671,6,.@label$;