Log Message:
py-xml2rfc: updated to 3.25.0

v3.25.0

New Features
- Drop support for Python 3.8

Bug Fixes
- **pdf**: Fix line height issue with superscripts
- Remove deprecated cgi method
- **text**: Fix truncated text issue in cells with rowspan

Documentation Changes
- update CHANGELOG.md + py file versions for v3.24.0

Chores
- Remove obsolete script
- Cleanup MANIFEST.in