WooCommerce Memberships 1.26.5

* Fix - Ensures that the variation prices hash is an array before appending data to it to prevent a PHP error in some discounts calculations
* Misc - Add support for WooCommerce 4.0

* Feature - When a customer adds a product that grants access to a membership to the cart, immediately apply discounts granted by that membership, as long as the product is in cart and if enabled by setting option
* Fix - Address conflict with the block editor that caused keyboard shortcuts not working with Memberships blocks added to Gutenberg
* Fix - Do not exclude subscription products from total count of products when determining if a subscription membership plan is only governed by a subscription product

* Fix - Prevent compounding discounts when a member re-subscribes to a cancelled subscription for a discounted product
* Fix - If a customer cancels a subscription that is tied to a membership set to last as long as the subscription is active, make sure that any end date is cleared if the customer re-activates the subscription