fix: missing quiqqerErpOutputSendMailBefore event param

src/QUI/ERP/Output/Output.php

@@ -270,7 +270,7 @@ public static function sendPdfViaMail(
 
         QUI::getEvents()->fireEvent(
             'quiqqerErpOutputSendMailBefore',
-            [$entityId, $entityType, $recipientEmail, $Mailer]
+            [$entityId, $entityType, $recipientEmail, $Mailer, $mailFile]
         );
 
         $Mailer->send();