EurekaClientHttpRequestFactorySupplier getEurekaClientHttpRequestFactorySupplier() {
		return eurekaClientHttpRequestFactorySupplier;
	}
{@link RestClient} implementation of DiscoveryClientOptionalArgs that supports
supplying {@link ClientRequestFilter}.

@author Wonchul Heo
@author Olga Maciaszek-Sharma
@since 4.2.0
spring-cloud-netflix-eureka-client/src/main/java/org/springframework/cloud/netflix/eureka/http/RestClientDiscoveryClientOptionalArgs.java