Make tkl-upgrade-php script auto update PHP version status

[JedMeister]

The tkl-php-upgrade script should dynamically update the PHP versions available for download and their support status.

This could be done via a cron job which checks the PHP version info from upstream: https://www.php.net/releases/active

This issue is somewhat related to #2023 but the 2 issues are not dependent on one another.

Ideally the script should also warn the user if an unsupported version is in use. Primarily this would only apply to PHP versions installed from sury.org - not the Debian packges - but should probably also check the support status of the base Debian release (or perhaps that should be a separate script?)