fix trigger firing multiple times

fixes a bug that occurred when the attached view gets destroyed before the action was completed
and thus the state was not reset. When the view was recreated, the task would trigger again
leading to unexpected behavior. Now the task trigger will always reset.

Author: lukepistrol

Sources/TaskTrigger/TaskTriggerViewModifier.swift

@@ -32,13 +32,11 @@ struct TaskTriggerViewModifier<Value: Equatable>: ViewModifier where Value: Send
                     return
                 }
 
+                // reset the trigger's state to none to allow re-triggering in the future.
+                defer { trigger.cancel() }
+
                 // execute the async work.
                 await action(value)
-
-                // if not already cancelled, reset the trigger.
-                if !Task.isCancelled {
-                    self.trigger.cancel()
-                }
             }
     }
 }