Fix Call Shuttle (#1199)

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Fixes the call shuttle button.

Content.Server/Communications/CommunicationsConsoleSystem.cs

@@ -205,6 +205,10 @@ private bool CanCallOrRecall(CommunicationsConsoleComponent comp)
                 || !comp.CanShuttle)
                 return false;
 
+            // Calling shuttle checks
+            if (_roundEndSystem.ExpectedCountdownEnd is null)
+                return comp.CanShuttle;
+
             // Recalling shuttle checks
             var recallThreshold = _cfg.GetCVar(CCVars.EmergencyRecallTurningPoint);