https://bugzilla.redhat.com/show_bug.cgi?id=2244975
--- Comment #5 from Maxwell G maxwell@gtmx.me --- %pyproject_save_files -l is _not_ yet available. The PR to add it is still under review. There is no requirement to remove the %license from %files if %pyproject_save_files handles it.
Maybe include CONTRIBUTING.rst as %doc
That file is not user facing documentation and doesn't make sense to include in the RPM package.