Add return code to DrupalParanoiaCommand (#23)

Co-authored-by: Nerea Enrique <nerea.enrique@ekino.com>

Author: Curryed

src/DrupalParanoiaCommand.php

@@ -35,6 +35,8 @@ protected function execute(InputInterface $input, OutputInterface $output) {
     $composer = $this->getComposer();
     $commandEvent = new CommandEvent(PluginEvents::POST_COMMAND_RUN, 'drupal:paranoia', $input, $output);
     $composer->getEventDispatcher()->dispatch($commandEvent->getName(), $commandEvent);
+
+    return 0;
   }
 
 }