Log Message:
py-packaging: updated to 23.0

23.0

Allow "extra" to be None in the marker environment
Refactor tags._generic_api to use EXT_SUFFIX
Correctly handle trailing whitespace on URL requirements
Fix typing for specifiers.BaseSpecifier.filter()
Use stable Python 3.11 in tests
Correctly handle non-normalised specifiers in requirements
Move to src/ layout
Remove __about__ file, in favour of keeping constants in __init__