DuMux installation script needs to be updated for distutils package is deprecated since python 3.10
> The distutils package is deprecated and slated for removal in Python 3.12. Use setuptools or check PEP 632 for potential alternatives Acoording to [PEP 632](https://peps.python.org/pep-0632/), distutils is deprecated since python 3.10 and finally removed since 3.12. Our [dumux installatoin script](https://git.iws.uni-stuttgart.de/dumux-repositories/dumux/-/blob/master/bin/installdumux.py) therefore needs to upgrade.
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