Log Message:
py-editables: update to 0.5.

Release 0.5

    Fix a bug that broke importlib.invalidate_caches

Release 0.4

    Add a new add_to_subpackage method.
    Add type annotations.
    Internal admin: Switch to nox for automation
    Internal admin: Switch to ruff for linting
    Internal admin: Switch from setuptools to flit_core