Update php Docker tag to v8

ansible/assets/docker-ext/compose.yml.j2

@@ -371,7 +371,7 @@ services:
       - "traefik.http.services.healthchecks-http.loadbalancer.server.port=8000"
       - "traefik.http.routers.healthchecks.middlewares=authchain@docker"
   apache:
-    image: php:7.2-apache
+    image: php:8.4-apache
     volumes:
       - ./apache:/var/www/html
     ports:
@@ -388,7 +388,7 @@ services:
     networks:
       - backend
   apache2:
-    image: php:7.2-apache
+    image: php:8.4-apache
     volumes:
       - ./apache:/var/www/html
     ports: