Deprecated PHP Error in WooCommerce Square Plugin

[qasumitbagthariya]

Description:
While reviewing the Query Monitor, I noticed the following deprecated errors in the WooCommerce Square plugin:

Error: Creation of dynamic property WooCommerce\Square\Gateway\Gift_Card::$is_default_placeholder is deprecated.
Error: Creation of dynamic property WooCommerce\Square\Gateway\Gift_Card::$placeholder_id is deprecated.

Location:
wp-content/plugins/woocommerce-square/includes/Framework/PaymentGateway/Payment_Gateway.php:428

Steps to Reproduce:

1. Enable the WooCommerce Square plugin.
2. Monitor the Query Monitor for PHP errors.

Expected Behavior:
No deprecated errors should appear in the logs.

Actual Behavior:
The plugin triggers deprecated errors due to dynamic property creation.

Environment:

WordPress version: 6.7.1
PHP version: 8.2.23
WooCommerce Square version: 4.8.4