php: Rebase on Debian 12 (#5951)

* php: rebuild on debian 12

* Restored one build dockerfile

* cleanup Dockerfile

docker-compose.yml

@@ -110,7 +110,7 @@ services:
             - rspamd
 
     php-fpm-mailcow:
-      image: mailcow/phpfpm:1.88
+      image: mailcow/phpfpm:1.89
       command: "php-fpm -d date.timezone=${TZ} -d expose_php=0"
       depends_on:
         - redis-mailcow