Fixes dead queen footsteps. (#3815)

# About the pull request
The corpse of the Queen should not be walking. Fixes
#3797
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# Explain why it's good for the game
Bugs bad.
# Testing Photographs and Procedure
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# Changelog
:cl:
fix: Fixes Queen making footstep sounds while dead and being dragged.
/:cl:

code/datums/components/footstep.dm

@@ -31,7 +31,7 @@
 		return
 
 	var/mob/living/LM = parent
-	if(LM.buckled || LM.throwing || LM.is_ventcrawling)
+	if(LM.buckled || LM.throwing || LM.is_ventcrawling || LM.stat == DEAD)
 		return
 
 	if(LM.life_steps_total % steps)