Update python-exam to version 0.10.6 / rev 6 via SR 1139835
https://build.opensuse.org/request/show/1139835
by user StevenK + anag+factory
- Switch to pyproject macros.
- Stop using greedy globs in %files.
- Add patch fix-assertion-methods.patch:
* Correct test assertion methods.
- Refresh no-mock.patch, to remove it from install_requires.