Add python setup.py install before pytest

Author: Paulinakhew

.github/workflows/build.yml

@@ -19,8 +19,8 @@ jobs:
         run: | 
           python -m pip install --upgrade pip
           pip install pytest mock pytest-cov
-          pytest --cov=./ --cov-report=xml
           python setup.py install
+          pytest --cov=./ --cov-report=xml
       - name: Run Tests
         run: python -m pytest -v
       - name: upload coverage to Codecov