fix: purge php src

Signed-off-by: rare-magma <rare-magma@posteo.eu>

Dockerfile

@@ -10,6 +10,7 @@ RUN apt-get update && apt-get install -y --no-install-recommends \
     && docker-php-ext-configure gd --with-freetype=/usr/include/ --with-jpeg=/usr/include/ \
     && docker-php-ext-configure pgsql -with-pgsql=/usr/local/pgsql \
     && docker-php-ext-install -j$(nproc) gd pdo pdo_mysql pdo_pgsql pgsql \
+    && rm -f /usr/src/php.tar.xz /usr/src/php.tar.xz.asc \
     && apt-get remove -y libfreetype6-dev \
     libjpeg62-turbo-dev \
     libpng-dev \

Dockerfile.alpine

@@ -15,6 +15,7 @@ RUN apk add --quiet --no-cache \
     && docker-php-ext-configure gd --with-freetype=/usr/include/ --with-jpeg=/usr/include/ \
     && docker-php-ext-configure pgsql -with-pgsql=/usr/local/pgsql \
     && docker-php-ext-install -j$(nproc) gd pdo pdo_mysql pdo_pgsql pgsql \
+    && rm -f /usr/src/php.tar.xz /usr/src/php.tar.xz.asc \
     && apk del --quiet --no-cache \
     freetype-dev \
     libjpeg-turbo-dev \