Link Python bindings to Python::Module and not Python::Python to prevent Python bindings segfault on macOS

[traversaro]

Linking to Python::Python results in a segfault on module loading on macos.

[traversaro]

Linking to Python::Python results in a segfault on module loading on macos.

Just for reference for someone finding this issue on Google, that was not a macOS specific problem. The problem was due to being in macOS, and due to the use of a Python interpreter that statically link libpython (as the conda-forge one, see astral-sh/python-build-standalone#540 for more details). However, linking to Python::Module works perfectly fine for Python interpreters that link to a shared libpython, so the change make sense in general independently by the Python interpreter used.