ext/phar: refactor phar_create_signature() to return a zend_string*#21843

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

Girgias:2026-04-phar-signature-create-zstrGirgias/php-src:2026-04-phar-signature-create-zstrCopy head branch name to clipboard