Crear un atributo de producto con Data Patch en Magento 2

<?php
namespace GDW\Hello\Setup\Patch\Data;

use Magento\Catalog\Model\Product;
use Magento\Eav\Setup\EavSetupFactory;
use Magento\Framework\Setup\ModuleDataSetupInterface;
use Magento\Framework\Setup\Patch\DataPatchInterface;

class AddBrandAttribute implements DataPatchInterface
{
    public function __construct(
        private ModuleDataSetupInterface $moduleDataSetup,
        private EavSetupFactory $eavSetupFactory
    ) {}

    public function apply()
    {
        $this->moduleDataSetup->getConnection()->startSetup();

        $eavSetup = $this->eavSetupFactory->create(['setup' => $this->moduleDataSetup]);
        $eavSetup->addAttribute(Product::ENTITY, 'gdw_brand', [
            'type' => 'varchar',
            'label' => 'Brand',
            'input' => 'text',
            'required' => false,
            'visible' => true,
            'user_defined' => true,
            'global' => 1,
            'group' => 'General'
        ]);

        $this->moduleDataSetup->getConnection()->endSetup();
    }

    public static function getDependencies(): array { return []; }
    public function getAliases(): array { return []; }
}