FIX: PHP Deprecated: Creation of dynamic property

[fsilvafactoriabiz]

In the PHP 8.3 version, the declaration of dynamic variables is already deprecated.

Solution above the construct

public $id;
public $icon;
public $has_fields;
public $method_title;
public $method_description;
public $supports;
public $title;
public $merchant;
public $acquirer;
public $terminal;
public $secret_key;
public $description;
public $thank_you_text;
public $set_completed;
public $environment;
public $notify_url;

/**
* Constructor for the gateway.
*/
public function __construct() {}