Disable GridFillComponent on some tests (#15757)

Content.Server/Shuttles/Systems/ShuttleSystem.GridFill.cs

@@ -1,4 +1,5 @@
 using Content.Server.Shuttles.Components;
+using Content.Shared.CCVar;
 
 namespace Content.Server.Shuttles.Systems;
 
@@ -18,6 +19,9 @@ public sealed partial class ShuttleSystem
             return;
         }
 
+        if (_cfg.GetCVar(CCVars.DisableGridFill))
+            return;
+
         // Spawn on a dummy map and try to dock if possible, otherwise dump it.
         var mapId = _mapManager.CreateMap();
         var valid = false;

Content.Server/Shuttles/Systems/ShuttleSystem.cs

@@ -5,6 +5,7 @@ using Content.Shared.GameTicking;
 using Content.Shared.Shuttles.Systems;
 using JetBrains.Annotations;
 using Robust.Server.GameObjects;
+using Robust.Shared.Configuration;
 using Robust.Shared.Map;
 using Robust.Shared.Map.Components;
 using Robust.Shared.Physics;
@@ -31,6 +32,7 @@ public sealed partial class ShuttleSystem : SharedShuttleSystem
     [Dependency] private readonly StunSystem _stuns = default!;
     [Dependency] private readonly ThrusterSystem _thruster = default!;
     [Dependency] private readonly UserInterfaceSystem _uiSystem = default!;
+    [Dependency] private readonly IConfigurationManager _cfg = default!;
 
     private ISawmill _sawmill = default!;