Please add the invoice id in the order meta once created

Hello, would be nice to add the invoice_id into the order meta fields, I can see in your actual code that you have this planned in TODO.

/holded-integration/src/Services/OrderService.php

try {
            $order = OrderAdapter::fromWoocommerceToDTO($WCOrder);

            // Create / Update salesorder.
            $holdedInvoiceId = $WCOrder->get_meta('_holdedwc_invoice_id');
            if (empty($holdedInvoiceId)) {
                $this->holdedSDK->syncOrder($order);

            // TODO: Implement async calls to the plugin in order to save this ID
                //if (is_string($result)) {
                //    update_post_meta($orderId, '_holdedwc_invoice_id', $result);
                //
                //    $result = true;
                //}
            } else {
                $this->holdedSDK->syncOrder($order);
            }

            return true;
        } catch (\Exception $e) {
        }

Please implement this feature for stores to retrieve the invoice ID and let us ask the API to send/download the document.

This is mandatory, all WooCommerce orders must have an invoice ID match and the store owner needs to see that information on each order.

Thank you,
Daniel.