[MIRROR] Fixes some potential sleeps as detected by SpacemanDMM improvements (#1216)

* Fix some potential sleeps as detected by SpacemanDMM improvements (#54230)

overrides weren't detected by should not sleep, i think i've mostly
fixed that with SpaceManiac/SpacemanDMM#214

Some of these are wacky but overall this pr is harmless

signals shouldnt sleep even in weird 1 in a million situations or due
to other people adding bad code

overrides of changeling can_sting() use alert() and input() and that's
just too fucked for me to fix in this pr

* Fixes some potential sleeps as detected by SpacemanDMM improvements

Co-authored-by: spookydonut <github@spooksoftware.com>

code/modules/surgery/bodyparts/_bodyparts.dm

@@ -573,7 +573,7 @@
 	if(total_damage >= max_damage * disable_threshold) //Easy limb disable disables the limb at 40% health instead of 0%
 		if(!last_maxed)
 			if(owner.stat < UNCONSCIOUS)
-				owner.emote("scream")
+				INVOKE_ASYNC(owner, /mob.proc/emote, "scream")
 			last_maxed = TRUE
 		set_disabled(TRUE)
 		return

code/modules/surgery/bodyparts/dismemberment.dm

@@ -17,7 +17,7 @@
 	affecting.receive_damage(clamp(brute_dam/2 * affecting.body_damage_coeff, 15, 50), clamp(burn_dam/2 * affecting.body_damage_coeff, 0, 50), wound_bonus=CANT_WOUND) //Damage the chest based on limb's existing damage
 	if(!silent)
 		C.visible_message("<span class='danger'><B>[C]'s [name] is violently dismembered!</B></span>")
-	C.emote("scream")
+	INVOKE_ASYNC(C, /mob.proc/emote, "scream")
 	playsound(get_turf(C), 'sound/effects/dismember.ogg', 80, TRUE)
 	SEND_SIGNAL(C, COMSIG_ADD_MOOD_EVENT, "dismembered", /datum/mood_event/dismembered)
 	drop_limb()