Update and rename python-app.yml to python-tests.yml

Author: pbashyal-nmdp

.github/workflows/python-app.yml renamed to .github/workflows/python-tests.yml

@@ -24,6 +24,7 @@ jobs:
       run: |
         python -m pip install --upgrade pip
         pip install flake8
+        python setup.py install
         if [ -f test-requirements.txt ]; then pip install -r test-requirements.txt; fi
     - name: Lint with flake8
       run: |