Fixes categorized package data for packaging drop of LegacyVersion

[nezhar]

This is a fix in order to be compatible with packaging and the drop of LegacyVersion introduced in 22.0. The package now alows only versions compatible with PEP 440.

Without this fix, the package would have problems parsing releases such as https://pypi.org/project/pytz/2004d/

  File "/usr/local/lib/python3.7/site-packages/updatable/utils.py", line 251, in get_package_update_list
    categorized_package_data = get_categorized_package_data(package_data, package_version)
  File "/usr/local/lib/python3.7/site-packages/updatable/utils.py", line 89, in get_categorized_package_data
    parsed_release = parse(release)
  File "/usr/local/lib/python3.7/site-packages/packaging/version.py", line 52, in parse
    return Version(version)
  File "/usr/local/lib/python3.7/site-packages/packaging/version.py", line 197, in __init__
    raise InvalidVersion(f"Invalid version: '{version}'")
packaging.version.InvalidVersion: Invalid version: '2004d'