@Kiazoa-Joao so first you should be leveraging: https://gitlab.com/voxl-public/voxl-docker-images/voxl-docker-mavsdk
Voxl-docker-mavsdk-python is quite stale - the voxl-docker-mavsdk directory above is maintained and meant to run mavsdk python and c++ implementation.
What this will do is build the docker image on the parent computer and then push the docker tarball onto the voxl2 to be loaded. Then the user can run it from the voxl2.
Just follow the instructions in this repository and paste if you get any errors.
Zach