ну... скорее так:
$providers = require Builder::path('providers-web');
$eventsConfig = require Builder::path('events-web', dirname(DIR));
$eventDispatcherProvider = new \Yiisoft\Yii\Event\EventDispatcherProvider($eventsConfig);
$providers = array_merge(['yiisoft/event-dispatcher/eventdispatcher' => $eventDispatcherProvider], $providers);
$container = new Container(
require Builder::path('web'),
$providers
);