### Describe the issue [Documentation ](https://docs.aws.amazon.com/cdk/api/v2/docs/aws-cdk-lib.aws_rds.DatabaseInstance.html#storagetype) says "Storage types supported are gp2, io1, standard." [enum](https://docs.aws.amazon.com/cdk/api/v2/docs/aws-cdk-lib.aws_rds.StorageType.html) shows additional support for GP3 and IO2. ### Links https://docs.aws.amazon.com/cdk/api/v2/docs/aws-cdk-lib.aws_rds.DatabaseInstance.html#storagetype