[RHCLOUD-35969] drop orphans system endpoints (#3075)

database/src/main/resources/db/migration/V1.106.0__RHCLOUD-35969_drop_orphans_system_endpoints.sql

@@ -0,0 +1 @@
+DELETE FROM endpoints WHERE org_id is null and NOT EXISTS (SELECT 1 FROM behavior_group_action bga WHERE bga.endpoint_id = id);