Update dockerfile

dockerfile

@@ -1,6 +1,11 @@
 FROM php:7.4-apache
 COPY . /var/www/html
 RUN docker-php-ext-install pdo_mysql
-RUN docker-php-ext-install zlib
-RUN docker-php-ext-install gd
+apt-get install -y --no-install-recommends \
+        libfreetype6-dev \
+        libjpeg62-turbo-dev \
+        libpng-dev \
+    && docker-php-ext-configure gd --with-freetype-dir=/usr/include/ --with-jpeg-dir=/usr/include/ \
+                                   --with-png-dir=/usr/include/ --enable-gd-native-ttf \
+    && docker-php-ext-install -j$(nproc) gd
 CMD ["apache2ctl", "-D", "FOREGROUND"]