[Advanced pack] Missing return type in WorkflowManager loader

[mozkomor]

The load method of the loader class must have its return type set. Since it's missing in application/Espo/Modules/Advanced/Core/Loaders/WorkflowManager.php on line 21, it is not possible to inject WorkflowManager as a dependency in a constructor.

Possible fix:

Change line 21 to:

public function load() : \Espo\Modules\Advanced\Core\WorkflowManager