WooCommerce Google Product Feeds 11.0.14

* New: WooCommerce 5.7, 5.8 compatibility
* New: Allow Custom Attributes to be registered for pre-population options via filter
* New: Allow the_content filtering of descriptions to be disabled via filter
* Change: List global attribute taxonomies as "Global Attributes" in settings, not mixed in with Taxonomies
* Change: Improvements when broken "empty" prices are returned
* Change: Update Action Scheduler to 3.3.x
* Change: Tolerate broken term hierarchy structures without failing

* Change: WooCommerce 5.6 compatibility

* Change: Amend cache-blocking headers to no-store
* Change: Allow excluded catalogue visibilities to be modified via filter
* Change: Additional logging in debug mode
* Change: Tweaks to XML self reference headers for clearer support
* Fix: Resolve issue where exclude checkbox on variations was not generated correctly
* Fix: Category selection on feed manage page should not be available for review feeds
* Fix: Resolve issue where "No default" displayed in stead of "Use default" when creating products