slapos_cloud: Fixup z_related_causality_subscription_request

   Subscription request workflow uses simulation_state rather them validation one.

master/bt5/slapos_cloud/CatalogMethodTemplateItem/portal_catalog/erp5_mysql_innodb/z_related_causality_subscription_request.sql

 <dtml-var table_0>.base_category_uid = <dtml-var "portal_categories.causality.getUid()">
 AND <dtml-var table_1>.uid = <dtml-var table_0>.uid
 AND <dtml-var table_1>.portal_type = 'Subscription Request'
-AND <dtml-var table_1>.validation_state not in ('deleted', 'cancelled')
+AND <dtml-var table_1>.simulation_state != 'deleted'
 
 <dtml-var RELATED_QUERY_SEPARATOR>
 <dtml-var table_0>.category_uid = <dtml-var query_table>.uid