Use pytest instead of nosetests
Gaudi v38 will drop support for gaudi_add_tests(nosetests) (gaudi/Gaudi!1520 (merged)). This MR prepares for the transition by switching to the new gaudi_add_pytest(...) (gaudi/Gaudi!1440 (merged)).
Gaudi v38 will drop support for gaudi_add_tests(nosetests) (gaudi/Gaudi!1520 (merged)). This MR prepares for the transition by switching to the new gaudi_add_pytest(...) (gaudi/Gaudi!1440 (merged)).