Fix client-only command permissions. (#5899)

Content.Client/Changelog/ChangelogWindow.xaml.cs

@@ -2,6 +2,7 @@ using System;
 using System.Linq;
 using Content.Client.Resources;
 using Content.Client.Stylesheets;
+using Content.Shared.Administration;
 using JetBrains.Annotations;
 using Robust.Client.AutoGenerated;
 using Robust.Client.ResourceManagement;
@@ -198,7 +199,7 @@ namespace Content.Client.Changelog
         }
     }
 
-    [UsedImplicitly]
+    [UsedImplicitly, AnyCommand]
     public sealed class ChangelogCommand : IConsoleCommand
     {
         public string Command => "changelog";