Standard clearml.conf for docker should mount huggingface cache dir

[johnml1135]

Here are the standard docker mounts:

    docker_internal_mounts {
        sdk_cache: "/clearml_agent_cache"
        apt_cache: "/var/cache/apt/archives"
        ssh_folder: "~/.ssh"
        ssh_ro_folder: "/.ssh"
        pip_cache: "/root/.cache/pip"
        poetry_cache: "/root/.cache/pypoetry"
        vcs_cache: "/root/.clearml/vcs-cache"
        venv_build: "~/.clearml/venvs-builds"
        pip_download: "/root/.clearml/pip-download-cache"
    }

To this, we should add huggingface's standard cache dir, ~/.cache/huggingface.