Deathgasp changes for mutes (#19025)

Co-authored-by: Errant <35878406+errant@users.noreply.github.com>

Content.Server/Mobs/DeathgaspSystem.cs

@@ -1,4 +1,5 @@
 using Content.Server.Chat.Systems;
+using Content.Server.Speech.Muting;
 using Content.Shared.Mobs;
 using Robust.Shared.Prototypes;
 
@@ -33,6 +34,9 @@ public sealed class DeathgaspSystem: EntitySystem
         if (!Resolve(uid, ref component, false))
             return false;
 
+        if (HasComp<MutedComponent>(uid))
+            return false;
+
         _chat.TryEmoteWithChat(uid, component.Prototype, ignoreActionBlocker: true);
 
         return true;