Github workflow fix

Author: rdziewietin

.github/workflows/python_package.yml

@@ -24,7 +24,7 @@ jobs:
         run: |
           python -m pip install --upgrade pip
           pip install flake8
-          pip install .[test]
+          pip install .[test,app-doctr]
       - name: Lint with flake8
         run: |
           # stop the build if there are Python syntax errors or undefined names