update build method

[veenstrajelmer]

warning is printed when we use the current build method python setup.py sdist bdist_wheel:

Please avoid running ``setup.py`` directly.
Instead, use pypa/build, pypa/installer, pypa/build or
other standards-based tools.
See https://blog.ganssle.io/articles/2021/10/setup-py-deprecated.html for details.

Todo:

• update dev deps: python -m build requires build (so add to dev dependencies).
• wheel and setuptools can be removed from the dependencies
• remove setup.py
• also update github action
• update contributing docs

Relevant for later: when building on WCF, we get the following error related to the snapvolumestemp folder: pypa/build#703