update docker images

docker/php/7.2-fpm-alpine/Dockerfile

@@ -1,4 +1,5 @@
 FROM php:7.2-fpm-alpine as dist
+LABEL maintainer aynic.os <support+docker@asycn.io>
 ARG DOCKER_BUILD_DIR
 ARG AMQP_VERSION=stable
 ARG AST_VERSION=stable
@@ -25,8 +26,6 @@ ARG XDEBUG_VERSION=stable
 ARG XHPROF_VERSION=2.2.0
 ARG YAML_VERSION=stable
 
-LABEL maintainer aynic.os <support+docker@asycn.io>
-
 RUN apk --no-cache upgrade \
  && apk add --no-cache --virtual .build-deps \
         $PHPIZE_DEPS \