Nightly failure in phpstan

[SwikritiT]

Build link: https://drone.owncloud.com/owncloud/activity/3357/3/4

Failure:

 ------ ----------------------------------------------------------------------------- 
  Line   lib/AppInfo/Application.php                                                  
 ------ ----------------------------------------------------------------------------- 
         Ignored error pattern #Method                                                
         Symfony\\Contracts\\EventDispatcher\\EventDispatcherInterface::dispatch\(\)  
         invoked with 2 parameters, 1 required.# in path                              
         /var/www/owncloud/server/apps/activity/lib/AppInfo/Application.php           
         was not matched in reported errors.                                          
 ------ ----------------------------------------------------------------------------- 


 [ERROR] Found 1 error                                                          

make: *** [Makefile:148: test-php-phpstan] Error 1

Related core issue: owncloud/core#39630