How to configure proxy setting for rest client in Quarkus

Issue

• How do I configure proxy setting for MicroProfile rest client style code as below in Quarkus?

import org.eclipse.microprofile.rest.client.inject.RegisterRestClient;

import javax.ws.rs.GET;
import javax.ws.rs.Path;
import javax.ws.rs.Produces;
import javax.ws.rs.core.MediaType;

@Path("/hello")
@RegisterRestClient
public interface GreetingService {
    @GET
    @Produces(MediaType.TEXT_PLAIN)
    public String hello();
}