Replace unicodecsv by standard csv module
    
    python-unicodecsv Python3.11 rebuild is failing [1].
    As it's not maintained since a while [2], we need to
    get rid of it to be able to support registry on
    Python 3.11.
    
    [1] https://copr.fedorainfracloud.org/coprs/g/python/python3.11/package/python-unicodecsv/
    [2] https://github.com/jdunck/python-unicodecsv