Updated wp-includes/class-wp-feed-cache.php for FeedWordPress

$ diff wp-includes/class-wp-feed-cache.php.org wp-includes/class-wp-feed-cache.php
25c25
< class WP_Feed_Cache extends SimplePie_Cache {
---
> class WP_Feed_Cache {  //class WP_Feed_Cache extends SimplePie_Cache {
37c37
< 	public function create( $location, $filename, $extension ) {
---
> 	public static function create( $location, $filename, $extension ) {   //public function create( $location, $filename, $extension ) {

Reference

• [php8] TypeError: call_user_func_array(): non-static method WP_Feed_Cache::create() cannot be called statically
• https://core.trac.wordpress.org/attachment/ticket/29204/29204.3.diff