package/php: security bump version to 8.0.13
Changelog: https://www.php.net/ChangeLog-8.php#8.0.13
Fixes CVE-2021-21707: http://bugs.php.net/79971
Signed-off-by: Bernd Kuhls <bernd.kuhls@t-online.de>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>