WooCommerce Product Bundles 8.3.5

* Fix - PHP warnings when updating 'array' type properties using v2 of the WC REST API.
* Tweak - Changed default bundled item image size to 'woocommerce_thumbnail' for consistency with WC 3.3 image size changes (WC 3.3+ only).

* Fix - Improved presentation of "Group mode > No parent" bundles in Composite Products.
* Fix - Incorrect calculation of totals affecting bundles with variable products and a single active variation with overriden attributes.
* Fix - Added support for Product Add-Ons 2.9.1.

* Fix - Contents of assembled bundles not visible in Shipstation.
* Fix - Issues with DB updating and stock status syncing of bundles & bundled products in a WP MultiSite environment - see Background processing; multisite should process current blog queue only by mikejolley · Pull Request #18060 · woocommerce/woocommerce · GitHub
* Fix - Hide bundled cart item price when parent is part of a Composite.