Investigate what to do about "localnpipe" on windows

it has been some time. the urllib3/docker-py incompatibilities are fixed. the time of using named pipes on windows is here. the question is how to deal with them in this library. for now, i am suggesting a fix like:

class DockerContainer:
    # ...
    def get_container_host_ip(self) -> str:
        # ...
        # see https://github.com/testcontainers/testcontainers-python/issues/415
        if host == "localnpipe" and "Windows" == system():
            return "localhost"
        # ...

but it really should get investigated in the short term.

DockerContainer.get_container_host_ip から始め、urllib3/docker-py の互換性コンテキストと併せて、ライブラリが現在 Windows 上のホスト値をどのように扱っているかを確認します。Windows 上で localnpipe のケースを再現してください。サポートされる動作と必要な変更が明確に文書化され、検証された時点で調査は完了です。