mysql 8.0: Your password does not satisfy the current policy requirements

在修改密碼是，顯示了失敗的錯訊息。發生原因是Password Validation Component 造成。

解法：
https://dev.mysql.com/doc/refman/8.0/en/validate-password-installation.html

在 mysql 5.7 的世界是使用plugin 在 mysql 8.0 變成 Component.

To install the validate_password component, use this statement:

INSTALL COMPONENT 'file://component_validate_password';

To uninstall the validate_password component, use this statement:

UNINSTALL COMPONENT 'file://component_validate_password';