Fixes small mech laser being unpurchaseable (#2987)

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## About The Pull Request

I love my cargo pack typepaths :)


## Changelog

:cl:
fix: mech laser cargo crate is no longer unbuyable
/:cl:

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Signed-off-by: Theos <[email protected]>

code/modules/cargo/packs/mechs.dm

@@ -174,7 +174,7 @@ weapons
 		/obj/item/mecha_parts/mecha_equipment/weapon/energy/laser
 	)
 
-/datum/supply_pack/mech/equipment/laser
+/datum/supply_pack/mech/equipment/biglaser
 	name = "Solaris kit"
 	desc = "A heavy laser cannon designed for combat usage."
 	cost = 2000