Update Docker in ring-buildmachine-02.mtl.sfl
Actual version of docker does not support qemu-static (bitfmt) native and as consequence we are have a dirty hack to get it working in Docker 17 (please read ARM)
We know it works in
Docker version 19.03.3, build a872fc2f86 in a Debian 10 machine.
Is important to be capable to have a plan to test if the version change brakes any build and to be capable to roll back if somethings goes wrong.