Update OldSoundRabbitMqExtension.php

Author: caciobanu

DependencyInjection/OldSoundRabbitMqExtension.php

@@ -139,6 +139,7 @@ protected function loadProducers()
         if ($this->config['sandbox'] == false) {
             foreach ($this->config['producers'] as $key => $producer) {
                 $definition = new Definition($producer['class']);
+                $definition->setPublic(true);
                 $definition->addTag('old_sound_rabbit_mq.base_amqp');
                 $definition->addTag('old_sound_rabbit_mq.producer');
                 //this producer doesn't define an exchange -> using AMQP Default