@Override
	protected SentinelConfigBuilder configBuilder(String id) {
		return new SentinelConfigBuilder(id);
	}
Factory for {@link ReactiveSentinelCircuitBreaker}.

@author Eric Zhao
spring-cloud-alibaba-starters/spring-cloud-circuitbreaker-sentinel/src/main/java/com/alibaba/cloud/circuitbreaker/sentinel/ReactiveSentinelCircuitBreakerFactory.java