timestamps are mistakenly created for customized timestamps

[boxsnake]

A simplified models.php config is as following:

• With timestamp enabled with customized fields
• With property constants generation
• With base files generation
• With $hidden & $fillable in base files

<?php
return [
    '*' => [
        ...
        'timestamps' => [
            'enabled' => true,
            'fields' => [
                'CREATED_AT' => 'create_time',
                'UPDATED_AT' => 'update_time',
            ]
        ],
        'base_files' => true,
        'with_property_constants' => true,
        'hidden_in_base_files' => true,
        'fillable_in_base_files' => true,
    ],
];

The generated base models have the following consts and casts:

const CREATED_AT = 'create_time';
const UPDATED_AT = 'update_time';
...

protected $casts = [
  ...
  self::CREATE_TIME => 'int',
  self::UPDATE_TIME => 'int',
  ...
];

Property's CREATED_AT AND UPDATED_AT are right, since Eloquent's HasTimestamps traits ( \Illuminate\Database\Eloquent\Concerns\HasTimestamps) uses these two constants.

However, the generated $casts are with the wrong keys. The self::CREATE_TIME and self::UPDATE_TIME keys should be self::CREATED_AT and self::UPDATED_AT.