Update Docker DinD to 20.10.x and drop need for DOCKER_CL_EXPERIMENTAL=enabled
As discussed it's possible that if we would upgrade our Docker-in-Docker service to Docker 20.10.x (which is the newest version at the moment) we may be able to remove a need to use Docker CLI in the experimental mode, which we currently do to build our images with docker buildx
.
Let's check if this is true and if yes, let's merge such changes to the project.