Dockerfileに&&の記入漏れ修正

infra/php/Dockerfile

@@ -27,8 +27,8 @@ RUN apt-get update && \
     dpkg -i libjpeg-dev_1.5.2-2+deb10u1_all.deb && \
     rm -rf *.deb && \
     rm -rf /var/lib/apt/lists/* && \
-    docker-php-ext-configure gd --with-jpeg
-    docker-php-ext-install intl pdo_mysql zip bcmath gd
+	docker-php-ext-configure gd --with-jpeg && \
+	docker-php-ext-install intl pdo_mysql zip bcmath gd
 
 COPY ./php.ini /usr/local/etc/php/php.ini