ext/phar: refactor _phar_archive_data.fname field to be a zend_string*#21823

Girgias merged 1 commit intophp:masterphp/php-src:masterfrom

Girgias:2026-04-phar-fname-zend_stringGirgias/php-src:2026-04-phar-fname-zend_stringCopy head branch name to clipboard