WooCommerce Pre-Orders 2.1.5

* Dev - Bump WooCommerce "tested up to" version 9.4.
* Dev - Bump WooCommerce minimum supported version to 9.2.
* Dev - Bump WordPress "tested up to" version 6.7.
* Dev - Bump WordPress minimum supported version to 6.5.

* Add - Show merchants a warning to manually process refunds after cancelling charged upfront pre-orders.
* Fix - Ensure the display text shows correctly if using cart or checkout blocks.
* Fix - Pre-Order confirmation message to remove "on" before "at a future date".
* Dev - Bump WooCommerce "tested up to" version 9.2.
* Dev - Bump WooCommerce minimum supported version to 9.0.
* Dev - Ensure jQuery is imported correctly into our script.

* Add - Support for the new Product Block Editor.
* Dev - Bump WooCommerce "tested up to" version 8.6.
* Dev - Bump WooCommerce minimum supported version to 8.4.
* Dev - Bump PHP minimum supported version to 7.4.

* Fix - Block errors while editing the Cart and Checkout pages.
* Dev - Added E2E tests for the "Enable pre-orders for products that get out of stock" setting.
* Dev - Bump WooCommerce "tested up to" version 8.5.
* Dev - Bump WooCommerce minimum supported version to 8.3.
* Dev - Bump WordPress minimum supported version to 6.3.

* Dev - Add E2E tests coverage for Block Cart and Checkout.
* Dev - Bump WooCommerce "tested up to" version 8.4.
* Dev - Bump WooCommerce minimum supported version to 8.2.
* Dev - Bump PHP minimum supported version to 7.4.
* Dev - Bump PHP "tested up to" version 8.3.

* Dev - Add Playwright end-to-end tests.
* Dev - Bump WooCommerce "tested up to" version 8.3.
* Dev - Bump WooCommerce minimum supported version to 8.1.
* Dev - Bump WordPress "tested up to" version 6.4.
* Dev - Bump WordPress minimum supported version to 6.2.
* Tweak - Admin settings colour to match admin theme colour scheme.

* Dev - Update PHPCS and PHPCompatibility GitHub Actions.
* Dev - Implement ESLint.
* Add - Compatibility with WooPayments.

* Dev - Bump WooCommerce "tested up to" version 7.9.
* Dev - Bump WooCommerce minimum supported version from 7.2 to 7.7.
* Dev - Bump PHP minimum supported version from 7.2 to 7.3.

* Fix - Hide Pre-Orders option for unsupported product types.
* Fix - Adjust the logic before performing pre-orders actions.
* Dev - Bump WooCommerce "tested up to" version 7.8.
* Dev - Bump WooCommerce minimum supported version from 6.8 to 7.2.
* Dev - Bump WordPress minimum supported version from 5.8 to 6.1.
* Dev - Update like statement preparation in pre-order searches.
* Dev - Wrap the contents of the countdown shortcode without WC_Shortcodes::shortcode_wrapper.

* Add - Support for High-performance Order Storage ("HPOS") (formerly known as Custom Order Tables, "COT").
* Add - Declare compatibility with High-Performance Order Storage ("HPOS").
* Fix - Ensure custom messages get added to the pre-order completion email.
* Fix - Improve variable type checking.
* Fix - Set correct order status to when complete payment for failed pre-order.
* Tweak - Bump minimum WP version to 5.6.
* Tweak - Bump minimum PHP version to 7.0.
* Tweak - Bump minimum WC version to 6.0.
* Tweak - Bump WC tested up to version to 6.8.
* Fix - Pre-Orders list table filters.
* Fix - Sanitize product filter
* Update - Use is_checkout() instead of WOOCOMMERCE_CHECKOUT when removing unsupported gateways.
* Add - Show private pre-order products list to perform the pre-order actions.
* Fix - Pre-Orders list table filters.
* Tweak - Additional HPOS compatibility updates.
* Tweak - Bump WordPress “Tested up to” version to 6.1.
* Tweak - Nonce validation and redirection logic