public Builder retryForResponses(Predicate<HttpResponse> predicate) {
            this.predicate = (response, ctx) -> predicate.test(response);
            return this;
        }
A {@link ServiceUnavailableRetryStrategy} that supports delayed retries on any response types.

@author bjorncs
http-utils/src/main/java/ai/vespa/util/http/hc4/retry/DelayedResponseLevelRetryHandler.java