make pulled uncuffing slower & reduce uncuff spam cooldown (#29008)

* prevent people being pulled from uncuffing themselves

* block -> modify duration

Content.Shared/Cuffs/Components/HandcuffComponent.cs

@@ -105,3 +105,9 @@ public record struct UncuffAttemptEvent(EntityUid User, EntityUid Target)
     public readonly EntityUid Target = Target;
     public bool Cancelled = false;
 }
+
+/// <summary>
+/// Event raised on an entity being uncuffed to determine any modifiers to the amount of time it takes to uncuff them.
+/// </summary>
+[ByRefEvent]
+public record struct ModifyUncuffDurationEvent(EntityUid User, EntityUid Target, float Duration);

Content.Shared/Cuffs/SharedCuffableSystem.cs

@@ -561,7 +561,10 @@ namespace Content.Shared.Cuffs
                 return;
             }
 
-            var uncuffTime = isOwner ? cuff.BreakoutTime : cuff.UncuffTime;
+
+            var ev = new ModifyUncuffDurationEvent(user, target, isOwner ? cuff.BreakoutTime : cuff.UncuffTime);
+            RaiseLocalEvent(user, ref ev);
+            var uncuffTime = ev.Duration;
 
             if (isOwner)
             {