YITH WooCommerce Subscription Premium 3.9.0

New: Support for WordPress 5.5
New: Support for WooCommerce 4.4
Tweak: Added an additional scheduled action to check if the renewal order has been paid
Update: Plugin framework
Fix: Prevent error inside the subscription email template
Fix: Prevent fatal error on edit subscription page if the subscription product has been deleted

Fix: Fixed error with YITH WooCommerce Multi Vendor
Fix: Fixed css style on product page editor

* New: Support for WooCommerce 4.2
* New: Added French translation
* Update: Plugin framework
* Fix: Fixed update shipping address issue