disable installing the bcmath by default

disable installing the PHP bcmath extension by default on the php-fpm container

docker-compose.yml

@@ -49,7 +49,7 @@ services:
                 - INSTALL_SOAP=false
                 - INSTALL_MONGO=false
                 - INSTALL_ZIP_ARCHIVE=false
-                - INSTALL_BCMATH=true
+                - INSTALL_BCMATH=false
                 - INSTALL_MEMCACHED=false
                 - INSTALL_OPCACHE=false
                 - INSTALL_AEROSPIKE_EXTENSION=false