* Fix: Fix one remaining issue with the legacy code which was used to support older versions of WC.
* Updates: Updates to satisfy the security scanner.

* Update: Add aria roles and labels to the swatches to provide help for assistive technologies.
* Update: CSS updates to modernize the UI a bit.
* Update: Update wc_core_dropdown_variation_attribute_options to match latest wc_dropdown_variation_attribute_options function.
* Update: Double check that the swatch options exist before attempting to render them. Fixes issues with some themes that do not properly load the swatch options.
* Update: PHP 8.2+ compatibility.
* Update: WC and WP compatibility.

* Dev – Enable HPOS in unit tests with method compatible in WC 8.4.
* Dev – Unit test compatibility with PHP 8.3.
* Fix – Confirm customer is found before opting in user.
* Fix – Exclude anonymized orders when setting up guest customers.

* Tweak: Further optimize when adding an API Key activation.
* Fix: Background processing to update all customer purchased API Key activations when the product activation limit is changed.
* Dev: Removed unused Amazon S3 function format_secure_s3_url() that was used to create AWS Signature Version 3 URL introduced in version 1.3.2. AWS Signature Version 4 has been in use since version 2.1.