@Override
    public void waitUntilReady() {
        waitUntilReady(target);
    }
Custom wait strategy for YSQL API.

<p>
Though we can either use HTTP or PORT based wait strategy, when we create a custom
database/role, it gets executed asynchronously. As the wait on container.start() on a
specific port wouldn't fully guarantee the custom object execution. It's better to
check the DB status with this way with a smoke test query that uses the underlying
custom objects and wait for the operation to complete.
</p>
modules/yugabytedb/src/main/java/org/testcontainers/containers/strategy/YugabyteDBYSQLWaitStrategy.java