Removal of the python-on-whales command

[gabrieldemarmiesse]

The python-on-whales command is not available anymore, meaning that you cannot download the docker client binary automatically.
You need to install it yourself by using the Docker installation guide: https://docs.docker.com/engine/install/ . Note that you need only the client, you can skip the installation of the full docker engine. For example, on Ubuntu, that means you just need to do

sudo apt-get install docker-ce-cli docker-buildx-plugin docker-compose-plugin

instead of

sudo apt-get install docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin