feat: add support for PHP preloading

Dockerfile

@@ -5,7 +5,7 @@
 
 # https://docs.docker.com/engine/reference/builder/#understand-how-arg-and-from-interact
 ARG PHP_VERSION=7.4
-ARG NGINX_VERSION=1.17
+ARG NGINX_VERSION=1.19
 
 # "php" stage
 FROM php:${PHP_VERSION}-fpm-alpine AS symfony_php
@@ -20,7 +20,7 @@ RUN apk add --no-cache \
         jq \
     ;
 
-ARG APCU_VERSION=5.1.18
+ARG APCU_VERSION=5.1.19
 RUN set -eux; \
 	apk add --no-cache --virtual .build-deps \
 	    $PHPIZE_DEPS \
@@ -56,7 +56,7 @@ RUN set -eux; \
 COPY --from=composer:latest /usr/bin/composer /usr/bin/composer
 
 RUN ln -s $PHP_INI_DIR/php.ini-production $PHP_INI_DIR/php.ini
-COPY docker/php/conf.d/symfony.ini $PHP_INI_DIR/conf.d/symfony.ini
+COPY docker/php/conf.d/symfony.prod.ini $PHP_INI_DIR/conf.d/symfony.ini
 
 RUN set -eux; \
 	{ \