public static DnsServiceEndpointGroup of(String hostname) {
        return builder(hostname).build();
    }
Creates a {@link DnsServiceEndpointGroup} that schedules queries on a random {@link EventLoop} from
{@link CommonPools#workerGroup()}.

@param hostname the hostname to query DNS queries for.
core/src/main/java/com/linecorp/armeria/client/endpoint/dns/DnsServiceEndpointGroup.java