Update pythonapp.yml

Author: hsl-petrhaj

.github/workflows/pythonapp.yml

@@ -23,5 +23,7 @@ jobs:
         pip install setuptools --upgrade
         cd Scripts
         cp .env-win .env
+        pipenv update
+        pipenv lock --pre --clear
         pipenv --python 3.11 install --dev
         pipenv run pytest -s tests