Make mastercontainer and nextcloud container more secure by setting listen.allowed_clients

[szaimen]

mastercontainer:

/usr/local/etc/php-fpm.d/www.conf

;listen.allowed_clients = 127.0.0.1,::1

nextcloud container:

/usr/local/etc/php-fpm.d/www.conf

;listen.allowed_clients = ipv4-of-apache;ipv6-of-apache,ipv4-of-mastercontainer-ipv6-of-mastercontainer,localhost,notify-push

[szaimen]

#3172