WooCommerce Subscriptions 6.2.0

* Tweak: Improve compatibility with WPML. PR#4034
* Dev: Introduce filter to allow third-parties gateways to filter whether a token meta was updated. PR#4030
* Fix: Fixes for endpoint in "My Account".

* New: Add support for importing and exporting subscription variations via the WooCommerce > Products > Export/Import tools. PR#3970
* Fix: Only show one Subscriptions settings menu item on the WC Admin navigation. PR#4054
* Fix: Prevent PHP notices on the Edit Subscription page caused accessing an undefined index. PR#4056
* Fix: Existing variations will no longer be deleted when updating a regular variable product to a subscription variable product. PR#3795
* Fix: Update the `_subtracted_base_location_tax` meta data when a subscription's line item quantity is modified. PR#4039
* Fix: Next payment date calculations when the start date and last payment date are the same. PR#4017
* Dev: Update jQuery 3.0 deprecations. PR#4015

* Fix: Pass an order status array to get_order_report_data() to prevent possible fatals by 3rd parties. PR#3930
* Fix: Change logic to allow customers to pay for failed order with limited product. PR#3947
* Fix: Prevent base length from being saved in the DB when retrieved in 'apportion_length'. PR#3954
* Fix: Prevent errors when using Product Bundles (which uses WCS_Add_Cart_Item) by introducing a WCS_Add_Cart_Item::is_switch_after_fully_reduced_prepaid_term() function. PR#3957
* Fix: Introduce an SQL Transactions helper with automatic commit/rollback on shutdown. Prevents strange behaviour when a shutdown occurs during a SQL transaction. PR#3827
* Fix: [PHP 8.0] Change maybe_retry_payment() arg name to prevent unknown variable name errors. PR#3984
* Fix: Delete '_switch_totals_calc_base_length' meta incorrectly saved in the database on upgrade. PR#3958
* Fix: Prevent WC_Order_Item_Coupon:ffsetGet errors during renewal. PR#4009
* Dev: Introduce new hooks to various Switch_Totals_Calculator functions. PR#3872