require yaml module for tests
addressing:
==================================== ERRORS ====================================
___________ ERROR collecting tests/test_logic/test_modules_logic.py ____________
ImportError while importing test module '/builddir/build/BUILD/copr-frontend-1.139.git.62.15ae232c/coprs_frontend/tests/test_logic/test_modules_logic.py'.
Hint: make sure your test modules/packages have valid Python names.
Traceback:
tests/test_logic/test_modules_logic.py:1: in <module>
import yaml
E ModuleNotFoundError: No module named 'yaml'