APT autoremove

[janstuemmel]

Docker best practices does not recommend on autoclean and autoremove. Getting rid of apk lists should be enough

https://github.com/CM2Walki/CSGO/blob/7deb67cd1edae30bdb42d15301cd5046c03cfeec/buster/Dockerfile#L36-L38

ref:

• https://gist.github.com/marvell/7c812736565928e602c4
• https://docs.docker.com/develop/develop-images/dockerfile_best-practices/#run
• https://askubuntu.com/questions/3167/what-is-difference-between-the-options-autoclean-autoremove-and-clean