Anchorable shared (#17422)

Co-authored-by: BenOwnby <ownbyb@appstate.edu>
Co-authored-by: metalgearsloth <comedian_vs_clown@hotmail.com>
Co-authored-by: metalgearsloth <31366439+metalgearsloth@users.noreply.github.com>

Content.Server/Procedural/DungeonSystem.cs

@@ -5,6 +5,7 @@ using Robust.Shared.CPUJob.JobQueues.Queues;
 using Content.Server.Decals;
 using Content.Server.GameTicking.Events;
 using Content.Shared.CCVar;
+using Content.Shared.Construction.EntitySystems;
 using Content.Shared.Procedural;
 using Robust.Server.GameObjects;
 using Robust.Shared.Configuration;