Refried beans and spanish rice now drop bowls (tgstation#80840)

I found these 2 foods in the mexican section that requires a bowl to
craft the food, but doesn't drop the bowl upon being eaten. This quickly
fixes that by making the bowl the trash item like every other instance
of this.

code/game/objects/items/food/mexican.dm

@@ -305,6 +305,7 @@
 		/datum/reagent/consumable/nutriment/vitamin = 6,
 		/datum/reagent/consumable/nutriment/protein = 4,
 	)
+	trash_type = /obj/item/reagent_containers/cup/bowl
 	tastes = list("mashed beans" = 1, "onion" = 3,)
 	foodtypes = VEGETABLES | FRIED
 	w_class = WEIGHT_CLASS_SMALL
@@ -319,6 +320,7 @@
 		/datum/reagent/consumable/nutriment = 6,
 		/datum/reagent/consumable/nutriment/vitamin = 6,
 	)
+	trash_type = /obj/item/reagent_containers/cup/bowl
 	tastes = list("zesty rice" = 1, "tomato sauce" = 3,)
 	foodtypes = VEGETABLES
 	w_class = WEIGHT_CLASS_SMALL