Posture check: Alibaba Cloud ApsaraDB RDS instance is using the default VPC
Query: ```config from cloud.resource where api.name = 'alibaba-cloud-rds-instance' as X; config from cloud.resource where api.name = 'alibaba-cloud-vpc' as Y; filter '$.X.vpcId equals $.Y.vpcId and $.Y.isDefault is true'; show X;```