add `symfony`-cli (for local webserver) to all new releases

[en-jschuetze]

https://symfony.com/doc/current/setup/symfony_server.html

• add 'symfony-cli' package to generate-changelog.php
• add symfony cli package (ubuntu)

# install symfony cli
RUN wget --quiet --no-verbose 'https://dl.cloudsmith.io/public/symfony/stable/setup.deb.sh' -O /tmp/setup-symfony-cli.deb.sh \
   && bash -o pipefail /tmp/setup-symfony-cli.deb.sh \
   && rm /tmp/setup-symfony-cli.deb.sh

• add symfony cli package (alpine)
• give www-data owner rights for HOME folder

# give www-data it's home directory
RUN chown www-data:www-data /var/www