public Response healthCheck() {
        Objects.requireNonNull(connectWorker, "Cannot perform health check before starting worker");
        return healthCheck(connectWorker);
    }
Start a standalone embedded connect worker. Internally, this class will spin up a Kafka cluster,
set up any tmp directories. and clean them up on exit. Methods on the same
{@code EmbeddedConnectStandalone} are not guaranteed to be thread-safe.
connect/runtime/src/test/java/org/apache/kafka/connect/util/clusters/EmbeddedConnectStandalone.java