HK: fix iterating all worlds instead of only HK worlds in stage_pre_f…

…ill (ArchipelagoMW#3750)

Would cause generation to fail when generating with HK and another game.

Mistake in 6803c37.

worlds/hk/__init__.py

@@ -467,7 +467,7 @@ def set_goal(player, grub_rule: typing.Callable[[CollectionState], bool]):
         worlds = [world for world in multiworld.get_game_worlds(cls.game) if world.options.Goal in ["any", "grub_hunt"]]
         if worlds:
             grubs = [item for item in multiworld.get_items() if item.name == "Grub"]
-        all_grub_players = [world.player for world in multiworld.worlds.values() if world.options.GrubHuntGoal == GrubHuntGoal.special_range_names["all"]]
+        all_grub_players = [world.player for world in worlds if world.options.GrubHuntGoal == GrubHuntGoal.special_range_names["all"]]
 
         if all_grub_players:
             group_lookup = defaultdict(set)