fix afterCommit() and DatabaseTransactions (#42502)

Author: ejunker

src/Illuminate/Foundation/Testing/DatabaseTransactions.php

@@ -20,6 +20,12 @@ public function beginDatabaseTransaction()
             $connection->unsetEventDispatcher();
             $connection->beginTransaction();
             $connection->setEventDispatcher($dispatcher);
+            
+            if ($this->app->resolved('db.transactions')) {
+                $this->app->make('db.transactions')->callbacksShouldIgnore(
+                    $this->app->make('db.transactions')->getTransactions()->first()
+                );
+            }
         }
 
         $this->beforeApplicationDestroyed(function () use ($database) {