PHP 8.5 WooCommerce Upgrade

nznaturalhealth.com is still on an older PHP build and I plan to move the server to PHP 8.5. Before switching over, I need the entire WooCommerce store reviewed, updated, and fully tested so that the upgrade is seamless for customers... (Budget: $250 - $750 NZD, Jobs: HTML, MySQL, Payment Processing, PHP, Web Hosting, Web Security, Website Development, Website Testing, WooCommerce, WordPress)