Fix crontab

Dockerfile

@@ -61,7 +61,8 @@ RUN docker-php-ext-install gd pdo pdo_mysql zip
 # Get latest Composer
 COPY --from=composer:latest /usr/bin/composer /usr/bin/composer
 
-WORKDIR /var/www
+ARG wd=/var/www
+WORKDIR ${wd}
 
 COPY . .
 COPY --from=build-vue /usr/app/public/build ./public/build
@@ -75,7 +76,7 @@ RUN mv ${APP_ENV_FILE} .env
 RUN composer install --no-interaction --prefer-dist
 
 # CRON
-RUN echo "* * * * * cd /usr/app && php artisan schedule:run >> /dev/null 2>&1" > /etc/crontabs/root
+RUN echo "* * * * * cd ${wd} && php artisan schedule:run >> /dev/null 2>&1" > /etc/crontabs/root
 
 # Link the storage directory to the public directory.
 RUN php artisan storage:link