fixing care package for SG on WO spawning the old batteries. (#4069)

# About the pull request
fixes: #4054
<!-- Remove this text and explain what the purpose of your PR is.

Mention if you have tested your changes. If you changed a map, make sure
you used the mapmerge tool.
If this is an Issue Correction, you can type "Fixes Issue #169420" to
link the PR to the corresponding Issue number #169420.

Remember: something that is self-evident to you might not be to others.
Explain your rationale fully, even if you feel it goes without saying.
-->

# Explain why it's good for the game
# Testing Photographs and Procedure
<details>
<summary>Screenshots & Videos</summary>

Put screenshots and videos here with an empty line between the
screenshots and the `<details>` tags.

</details>


# Changelog
:cl:
fix: Care package for SG on WO will now spawn with the proper batteries
for them.
/:cl:

---------

Co-authored-by: Julien <[email protected]>

code/game/gamemodes/colonialmarines/whiskey_outpost.dm

@@ -664,8 +664,8 @@
 							/obj/item/ammo_magazine/rocket/wp)
 		if(2) //Smartgun supplies
 			spawnitems = list(
-					/obj/item/cell/high,
-					/obj/item/cell/high,
+					/obj/item/smartgun_battery,
+					/obj/item/smartgun_battery,
 					/obj/item/ammo_magazine/smartgun,
 					/obj/item/ammo_magazine/smartgun,
 					/obj/item/ammo_magazine/smartgun,