- Convert spec file to use pyproject.toml build system
- Add 8 patches from upstream (spelling fixes, typo corrections, cleanups)
- Modernize packaging with %pyproject_wheel and %pyproject_install macros
- Bump release to 3.9-6
Resolves: RHEL-114900
Signed-off-by: John Kacur <jkacur@redhat.com>