我按照以下教程创建了一个mysql数据库和一个用户：
https://linuxize.com/post/how-to-install-drupal-on-ubuntu-18-04/

CREATE DATABASE drupal CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci;
GRANT SELECT, INSERT, UPDATE, DELETE, CREATE, DROP, INDEX, ALTER, CREATE TEMPORARY TABLES ON drupal.* TO 'drupaluser'@'localhost' IDENTIFIED BY 'change-with-strong-password';

数据库的创建工作正常。
但是我在创建用户时收到一个警告：

Query OK, 0 rows affected, 1 warning (0.00 sec)

详情如下：

mysql> SHOW WARNINGS;
+---------+------+------------------------------------------------------------------------------------------------------------------------------------+
| Level   | Code | Message                                                                                                                            |
+---------+------+------------------------------------------------------------------------------------------------------------------------------------+
| Warning | 1287 | Using GRANT for creating new user is deprecated and will be removed in future release. Create new user with CREATE USER statement. |
+---------+------+------------------------------------------------------------------------------------------------------------------------------------+
1 row in set (0.00 sec)

我应该输入什么命令将用户添加到Drupal8数据库？