Ensure listeners work with v2 and v3 versions of zend-eventmanager

- Added `$priority = 1` optional argument defined in v3 to `attach()`
  signatures.

Author: weierophinney

src/Listener/ApiProblemListener.php

@@ -58,9 +58,9 @@ public function __construct($filters = null)
     }
 
     /**
-     * @param    EventManagerInterface $events
+     * {@inheritDoc}
      */
-    public function attach(EventManagerInterface $events)
+    public function attach(EventManagerInterface $events, $priority = 1)
     {
         $this->listeners[] = $events->attach(MvcEvent::EVENT_RENDER, [$this, 'onRender'], 1000);
         $this->listeners[] = $events->attach(MvcEvent::EVENT_DISPATCH_ERROR, [$this, 'onDispatchError'], 100);

src/Listener/RenderErrorListener.php

@@ -24,9 +24,9 @@ class RenderErrorListener extends AbstractListenerAggregate
     protected $displayExceptions = false;
 
     /**
-     * @param EventManagerInterface $events
+     * {@inheritDoc}
      */
-    public function attach(EventManagerInterface $events)
+    public function attach(EventManagerInterface $events, $priority = 1)
     {
         $this->listeners[] = $events->attach(MvcEvent::EVENT_RENDER_ERROR, [$this, 'onRenderError'], 100);
     }