Gravity Forms 2.9.1.2

- Fixed an issue that causes fatal errors on some sites during the background processing of telemetry data.

- AF: Fixed the `Creation of dynamic property CLASS:delayed_payment_integration is deprecated` notice with PHP 8.2.
- AF: Fixed an issue where the background feed processor uses a stale instance of the add-on to process the feed preventing the {apc_media} merge tags from outputting values.
- Fixed an issue where feed settings for ActiveCampaign, Agile CRM, Breeze, Mailchimp, Trello, Twilio, and ZohoCRM display a deprecation warning when using PHP 8.1.

- 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.
- AF: Fixed the `strpos(): Passing null to parameter #1 ($haystack) of type string is deprecated` notice that can occur with PHP 8.1 when getting a setting value.