Laravel validate "required" rule

Question

In class TrimStrings i was added passsword or new_password to except field not trim:

<?php

namespace App\Http\Middleware;

use Illuminate\Foundation\Http\Middleware\TrimStrings as Middleware;

class TrimStrings extends Middleware
{
    /**
     * The names of the attributes that should not be trimmed.
     *
     * @var array
     */
    protected $except = [
        'current_password',
        'password',
        'password_confirmation',
        'new_password'
    ];
}

In method rule of Request, i still get value of new_password not trim. But when use required rule in laravel:

'new_password' => [
    'string',
    'required',
    'max:255'
],

but it seems that when using the required rule it still automatically trims my string before validating. Is there a way for them not to do that? Thank you.