Fixes the laser gun being unbuyable from the outpost (shiptest-ss13#2895

)

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## About The Pull Request

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The laser gun and mini e-gun had the same datum path, so the laser
couldn't be bought.

## Why It's Good For The Game

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Bug fixes good

## Changelog

:cl:
fix: The laser gun can be bought at the outpost again.
/:cl:

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code/modules/cargo/packs/gun.dm

@@ -60,7 +60,7 @@
 	contains = list(/obj/item/gun/energy/laser)
 	crate_name = "laser crate"
 
-/datum/supply_pack/gun/laser
+/datum/supply_pack/gun/mini_energy
 	name = "Mini Energy Gun Crate"
 	desc = "Contains a small, versatile energy gun, capable of firing both nonlethal and lethal blasts, but with a limited power cell."
 	cost = 500