Install Docker and docker-compose from the official Ubuntu archives

[paulmenzel]

Please do not merge yet.

[antobinary]

Thank you for looking into this!

[ffdixon]

A bit of testing. When installing the default ubuntu repository, the version is

ubuntu@ubuntu-focal:~$ docker -v
Docker version 24.0.5, build 24.0.5-0ubuntu1~20.04.1

when installing from the docker repository, the version is

# docker -v
Docker version 26.0.1, build d260a54