Make 'old_sound_rabbit_mq.parts_holder' public

Service 'old_sound_rabbit_mq.parts_holder' is used in Command/SetupFabricCommand.php

Author: caciobanu

Resources/config/rabbitmq.xml

@@ -30,7 +30,7 @@
             <tag name="data_collector" template="OldSoundRabbitMqBundle:Collector:collector.html.twig" id="rabbit_mq" />
         </service>
 
-        <service id="old_sound_rabbit_mq.parts_holder" class="%old_sound_rabbit_mq.parts_holder.class%" />
+        <service id="old_sound_rabbit_mq.parts_holder" class="%old_sound_rabbit_mq.parts_holder.class%" public="true" />
 
         <service id="old_sound_rabbit_mq.anon_consumer_command" class="OldSound\RabbitMqBundle\Command\AnonConsumerCommand">
             <tag name="console.command" command="rabbitmq:anon-consumer" />