slapos_cloud: use causality to link the Ticket to the context document

master/bt5/slapos_cloud/WorkflowTemplateItem/portal_workflow/person_slap_interface_workflow/script_Person_requestSupportRequest.py

@@ -38,7 +38,7 @@ support_request = module.newContent(
   resource=resource,
   destination_decision_value=person,
   destination_project_value=project_list[0],
-  aggregate=aggregate,
+  causality=aggregate,
   specialise="sale_trade_condition_module/slapos_ticket_trade_condition",
   activate_kw={'tag': tag}
 )