[Compose, PHP-FPM] Fix script in new image

data/Dockerfiles/phpfpm/docker-entrypoint.sh

@@ -8,7 +8,7 @@ while ! mysqladmin ping --host mysql -u${DBUSER} -p${DBPASS} --silent; do
   sleep 2
 done
 
-until [ $(redis-cli -h redis-mailcow PING) == "PONG" ]; do
+until [[ $(redis-cli -h redis-mailcow PING) == "PONG" ]]; do
   sleep 2
 done
 

docker-compose.yml

@@ -104,7 +104,7 @@ services:
             - rspamd
 
     php-fpm-mailcow:
-      image: mailcow/phpfpm:1.17
+      image: mailcow/phpfpm:1.18
       build: ./data/Dockerfiles/phpfpm
       command: "php-fpm -d date.timezone=${TZ} -d expose_php=0"
       depends_on: