feat(docker): update debian version to bullseye

[jmkerloch]

Debian 10 (buster) has been superseded by Debian 11 (bullseye).

This PR update docker image to use bullseye instead of buster.

• use of cmake for prime-server build to avoid issue in link with pthread (same command used in road2 docker file : https://github.com/IGNF/road2/blob/9c54314e03d0f507f08553201d28f6d69045a478/docker/distributions/debian/Dockerfile#L14)

[Guts]

A good thing done!