title: Deprecated the ListenerInterface, turn your listeners into callables instead
body: <p>Deprecated the ListenerInterface, turn your listeners into callables instead</p>
  
  <p>Question related to Symfony 4.3
  after this update, they update these security updates.
  1.Deprecated the ListenerInterface, turn your listeners into callables instead</p>
  
  <p>How can i use callbacks with an interface?</p>