static RetryRule onStatus(Iterable<HttpStatus> statuses) {
        return onStatus(statuses, Backoff.ofDefault());
    }
Returns a newly created {@link RetryRule} that will retry with the
{@linkplain Backoff#ofDefault() default backoff} if the response status is one of
the specified {@link HttpStatus}es.
core/src/main/java/com/linecorp/armeria/client/retry/RetryRule.java