Adds some trailing commas to lists (#90501)

## About The Pull Request

I heard you liked commas.

## Why It's Good For The Game

Trailing commas make everyone happy!

## Changelog

Nothing anyone will notice besides downstreams adding to these lists

code/controllers/subsystem/processing/ai_behaviors.dm

@@ -5,7 +5,7 @@ PROCESSING_SUBSYSTEM_DEF(ai_behaviors)
 	priority = FIRE_PRIORITY_NPC_ACTIONS
 	runlevels = RUNLEVEL_GAME | RUNLEVEL_POSTGAME
 	dependencies = list(
-		/datum/controller/subsystem/movement/ai_movement
+		/datum/controller/subsystem/movement/ai_movement,
 	)
 	wait = 1
 	///List of all ai_behavior singletons, key is the typepath while assigned value is a newly created instance of the typepath. See SetupAIBehaviors()

code/controllers/subsystem/processing/ai_idle_behaviors.dm

@@ -4,7 +4,7 @@ PROCESSING_SUBSYSTEM_DEF(idle_ai_behaviors)
 	wait = 1.5 SECONDS
 	priority = FIRE_PRIORITY_IDLE_NPC
 	dependencies = list(
-		/datum/controller/subsystem/ai_controllers
+		/datum/controller/subsystem/ai_controllers,
 	)
 	///List of all the idle ai behaviors
 	var/list/idle_behaviors = list()

code/controllers/subsystem/processing/fishing.dm

@@ -2,7 +2,7 @@
 PROCESSING_SUBSYSTEM_DEF(fishing)
 	name = "Fishing"
 	dependencies = list(
-		/datum/controller/subsystem/atoms
+		/datum/controller/subsystem/atoms,
 	)
 	flags = SS_BACKGROUND
 	wait = 0.05 SECONDS // If you raise it to 0.1 SECONDS, you better also modify [datum/fish_movement/move_fish()]