Compatible with PHP 8.1

Hi.
I have a problem after changing the PHP version to a newer one, it very quickly fills the debugger file with errors related to the plugin. It also saturates my server. There are more errors.

[26-Mar-2024 07:07:39 UTC] PHP Deprecated: Return type of FS_Key_Value_Storage::count() should either be compatible with Countable::count(): int, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /home/platne/serwer196004/public_html/domainname.com/wp-content/plugins/ajax-search-for-woocommerce/fs/lib/includes/managers/class-fs-key-value-storage .php on line 389