[Sync EN] ext/opcache: document the JIT default change and startup fatal error (PHP 8.4) (#5738)

[github-actions]

Commit: https://github.com/php/doc-en/commit/36d18e7d4a32ecfdacc1eb086276ffb1baf0393c
PR: https://github.com/php/doc-en/pull/5738

Archivos ES a actualizar

• reference/opcache/ini.xml