message: Make `Config::auth_info` public
  Updated Config struct to make auth_info fully public
  See for justification for this change
diff: @@ -135,7 +135,7 @@ pub struct Config {
  /// Whether to accept invalid certificates
  pub accept_invalid_certs: bool,
  /// Stores information to tell the cluster who you are.
  - pub(crate) auth_info: AuthInfo,
  + pub auth_info: AuthInfo,
  // TODO Actually support proxy or create an example with custom client
  /// Optional proxy URL.
  pub proxy_url: Option<http::Uri>,
  