Exception 异常插件utf8_encode在php8.2被弃用

    private static function _sign(string $url, string $secret): string
    {
        [$s1, $s2] = explode(' ', microtime());
        $timestamp = (float)sprintf('%.0f', (floatval($s1) + floatval($s2)) * 1000);
        $data = $timestamp . "\n" . $secret;
        $signStr = base64_encode(hash_hmac('sha256', $data, $secret, true));
        $signStr = utf8_encode(urlencode($signStr)); 
        return $url . "&timestamp=$timestamp&sign=$signStr";
    }

ErrorException: Function utf8_encode() is deprecated in
/*****/vendor/tinywan/exception-handler/src/Event/DingTalkRobotEvent.php:62