Support Docker BuildKit

[filipsnastins]

EphemeralDockerImage doesn't support building with BuildKit

docker/docker-py#2230

        for chunk in internal_stream:
            if 'error' in chunk:
>               raise BuildError(chunk['error'], result_stream)
E               docker.errors.BuildError: the --mount option requires BuildKit. Refer to https://docs.docker.com/go/buildkit/ to learn how to build images with BuildKit enabled

.venv/lib/python3.10/site-packages/docker/models/images.py:306: BuildError