WooCommerce Bookings 2.2.0

* Dev - Bump WooCommerce "tested up to" version 9.0.
* Dev - Bump WooCommerce minimum supported version to 8.8.
* Dev - Bump WordPress minimum supported version to 6.4.
* Dev - Bump WordPress "tested up to" version 6.6.
* Dev - Exclude the Woo Comment Hook `@since` sniff.
* Dev - Update NPM packages and node version to v20 to modernize developer experience.
* Fix - The `accommodation-booking` product creation is not possible via the REST API.
* Fix - Handle Fatal Error caused by an order without a Booking.

* Add - Custom Product Type (Bookings) added to the new Woo "Add Product" workflow.
* Dev - Bump WooCommerce "tested up to" version 8.9.
* Dev - Bump WooCommerce minimum supported version to 8.7.
* Tweak - Correct official doc link to woocommerce.com.
* Tweak - Corrected text on the Templates tab.

* Dev - Bump WooCommerce "tested up to" version 8.8.
* Dev - Bump WooCommerce minimum supported version to 8.6.
* Update - Register Bookings product type even when `is_admin()` is false.
* Update - Replace the middleware URL from `connect.woocommerce.com` to `api.woocommerce.com/integrations`.