Transition to php83

PHP 8.1 going out of security support in November so should be moved to testing before 3.20 TBD

Before 3.20 PHP 8.3 should be set default (priority=100) and 8.2 priority to 60 !62886 (merged)

remaining aports requiring 8.1

• https://pkgs.alpinelinux.org/package/edge/community/x86_64/php81
• https://pkgs.alpinelinux.org/package/edge/community/x86_64/php81-apache2
• https://pkgs.alpinelinux.org/package/edge/community/x86_64/php81-fpm

remaining aports requiring 8.2

• https://pkgs.alpinelinux.org/package/edge/community/x86_64/php82
• https://pkgs.alpinelinux.org/package/edge/community/x86_64/php82-apache2
• https://pkgs.alpinelinux.org/package/edge/community/x86_64/php82-fpm