Gravity Forms 2.9.1.2

- Added validation to name, post title, post body, single line text, paragraph text & address fields to prevent empty entries when fields are filled with text encoded with invalid charset for the database table.
- Fixed an issue where editing an entry with a multifile upload field could result in broken links to files.

- Updated the minimum WordPress version on the System Status page to 6.2.
- Updated product usage data so it is processed in the background.

- Fixed a fatal error that occurs when a mapped setup_fee field is hidden by conditional logic.
- AF: Added the [`$_min_compatible_gravityforms_version`](https://docs.gravityforms.com/gfaddon/#h-the-class-variables) property to the `GFFAddOn` class, enabling add-ons to specify the minimum Gravity Forms version that is compatible with all the add-on features.