message: [libra-node] fix test json-rpc service
  this should be made public so that docker can expose it
  Closes:
  Closes:
diff: @@ -165,7 +165,10 @@ pub fn load_test_environment(config_path: Option<PathBuf>, random_ports: bool) {
  test_config.libra_root_key_path
  );
  println!("\tWaypoint: {}", test_config.waypoint);
  - let config = NodeConfig::load(&test_config.config_files[0]).unwrap();
  + let mut config = NodeConfig::load(&test_config.config_files[0]).unwrap();
  + config.json_rpc.address = format!("0.0.0.0:{}", config.json_rpc.address.port())
  + .parse()
  + .unwrap();
  println!("\tJSON-RPC endpoint: {}", config.json_rpc.address);
  println!(
  "\tFullNode network: {}",
  