Move php7-* aports to unmaintained
PHP 7.4 has no security support since end of Nov'22 (support for 8.0 will be removed in 11 month)
See https://www.php.net/supported-versions.php
Consider to stop using unsupported version and move all php7-*
aports to unmaintained or just remove them
The only dependent on php7 are kopano
and z-push
which has no response from upstream