Kills spooky_meteor.dmi, updates the meteor variant contained within. (#84477)

## About The Pull Request

The bloody thing has been jumpscaring and haunting me every time I
opened the folder.

![image](https://github.com/tgstation/tgstation/assets/122572637/381a1863-8cde-4a36-b0fa-eda7b9581090)

So alas, I decided to excorsise at least bit of the soul out of it, and
merge it into one dmi with the other meteors.

![image](https://github.com/tgstation/tgstation/assets/122572637/99c8a297-79c8-4b95-a20a-f169947736e3)

## Why It's Good For The Game

Updates ages old sprite, turns two .dmi's covering the same thing into
one.

## Changelog

🆑
image: updated halloween metoer sprites.
/🆑

code/modules/meteors/meteor_types.dm

@@ -459,8 +459,8 @@
 /obj/effect/meteor/pumpkin
 	name = "PUMPKING"
 	desc = "THE PUMPKING'S COMING!"
-	icon = 'icons/obj/meteor_spooky.dmi'
-	icon_state = "pumpkin"
+	icon = 'icons/obj/meteor.dmi'
+	icon_state = "spooky"
 	hits = 10
 	heavy = TRUE
 	dropamt = 1