Allow build with lxml 5.2.1

[sergiomb2]

No description provided.

[h1531095]

May we have this merge done?
I'm having trouble with v1.0.3 simply because lxml 4.x doesn't work with later python version (in my case python3.16).
This merge fixed my problem.

[klonuo]

Just that change didn't worked for me.

I cloned the repo, and recreated minimal pyproject.toml removing overcomplicated poetry:

[project]
name = "upnpclient"
version = "1.0.3"
dependencies = [
    "requests>=2.0.0",
    "six>=1.0.0",
    "python-dateutil>=2.0.0",
    "lxml>=5.0.0",
    "ifaddr>=0.1.7"
]

[tool.setuptools]
packages = ["gui", "upnpclient"]

then uv pip install . in venv

[sergiomb2]

Just in case anyone needs it, I now install upnpclient with --no-deps.

/usr/bin/pip install --user upnpclient --no-deps