Use heredoc syntax for installphase in Dockerfile

docker/Dockerfile

@@ -1,30 +1,51 @@
-FROM php:8.1-fpm-bookworm
+FROM docker.io/php:8.1-fpm-bookworm
 
 WORKDIR /usr/local/share/cypht
 
 ENV DEBIAN_FRONTEND=noninteractive
 ENV COMPOSER_CACHE_DIR=/tmp/composer_cache
 ENV COMPOSER_HOME=/tmp/composer_home
 
-RUN set -e \
-    && apt-get update && apt-get install -y \
-    supervisor nginx sqlite3 libfreetype6-dev libpng-dev libjpeg-dev \
-    libxml2-dev libzip-dev unzip \
-    && apt-get install -y --no-install-recommends \
-    ca-certificates \
-    && apt-get install -y --no-install-recommends \
+RUN <<BASH
+set -e
+apt-get update
+apt-get install -y \
+    supervisor \
+    nginx \
+    sqlite3 \
     libfreetype6-dev \
-    && docker-php-ext-configure gd \
-    && docker-php-ext-install session fileinfo dom xml xmlwriter gd pdo pdo_mysql mysqli \
-    && docker-php-ext-configure zip \
-    && docker-php-ext-install zip \
-    && curl -sSL https://github.com/mlocati/docker-php-extension-installer/releases/latest/download/install-php-extensions -o - | sh -s \
-    xdebug redis gnupg memcached \
-    && rm -rf /var/lib/apt/lists/* \
-    && apt-get clean \
-    && ln -sf /dev/stdout /var/log/nginx/access.log \
-    && ln -sf /dev/stderr /var/log/nginx/error.log \
-    && ln -s /usr/local/etc/php/php.ini-production /usr/local/etc/php/php.ini
+    libpng-dev \
+    libjpeg-dev \
+    libxml2-dev \
+    libzip-dev \
+    libpq-dev \
+    unzip
+apt-get install -y --no-install-recommends \
+    ca-certificates
+apt-get install -y --no-install-recommends \
+    libfreetype6-dev
+docker-php-ext-configure gd
+docker-php-ext-install \
+    session \
+    fileinfo \
+    dom \
+    xml \
+    xmlwriter \
+    gd \
+    pdo \
+    pdo_pgsql \
+    pdo_mysql \
+    mysqli
+docker-php-ext-configure zip
+docker-php-ext-install zip
+curl -sSL https://github.com/mlocati/docker-php-extension-installer/releases/latest/download/install-php-extensions -o - | sh -s \
+    xdebug redis gnupg memcached
+rm -rf /var/lib/apt/lists/*
+apt-get clean
+ln -sf /dev/stdout /var/log/nginx/access.log
+ln -sf /dev/stderr /var/log/nginx/error.log
+ln -s /usr/local/etc/php/php.ini-production /usr/local/etc/php/php.ini
+BASH
 
 RUN printf "[xdebug] \n\
     zend_extension=xdebug.so \n\