Unrevert audio (#21330)

Co-authored-by: Pieter-Jan Briers <pieterjan.briers@gmail.com>

Content.Server/Atmos/Monitor/Systems/AtmosAlarmableSystem.cs

@@ -7,6 +7,7 @@ using Content.Server.DeviceNetwork.Systems;
 using Content.Server.Power.Components;
 using Content.Shared.Atmos.Monitor;
 using Content.Shared.Tag;
+using Robust.Server.Audio;
 using Robust.Server.GameObjects;
 using Robust.Shared.Audio;
 using Robust.Shared.Utility;