package/php: security bump to version 7.3.4
Changelog: https://www.php.net/ChangeLog-7.php#7.3.4
Fixes these bugs, CVE-ID were not assigned yet:
Fixed bug #77753 (Heap-buffer-overflow in php_ifd_get32s).
Fixed bug #77831 (Heap-buffer-overflow in exif_iif_add_value).
Signed-off-by: Bernd Kuhls <bernd.kuhls@t-online.de>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>