message: jwt_authn: fix typo in authenticator name
diff: @@ -105,7 +105,7 @@ std::string AuthenticatorImpl::name() const {
  return provider_.value() + (is_allow_missing_ ? "-OPTIONAL" : "");
  }
  if (is_allow_failed_) {
  - return "_IS_ALLOW_FALED_";
  + return "_IS_ALLOW_FAILED_";
  }
  if (is_allow_missing_) {
  return "_IS_ALLOW_MISSING_";
  