Allow listeners added via config to be compiled in container by making them factories

Author: AydinHassan

test/Factory/EventDispatcherFactoryTest.php

@@ -129,7 +129,7 @@ public function testExceptionIsThrownIfEventsListenerContainerEntryNotExist(): v
     {
         $eventConfig = [
             'my-group' => [
-                'someEvent' => [containerListener('nonExistingContainerEntry')]
+                'someEvent' => [containerListener('nonExistingContainerEntry')()]
             ]
         ];
 
@@ -274,7 +274,7 @@ public function testExceptionIsThrownIfMethodDoesNotExistOnContainerEntry(): voi
     {
         $eventConfig = [
             'my-group' => [
-                'someEvent' => [containerListener('containerEntry', 'notHere')]
+                'someEvent' => [containerListener('containerEntry', 'notHere')()]
             ]
         ];