update python-test workflow to install requirements.txt

.github/workflows/python-test.yml

@@ -22,7 +22,7 @@ jobs:
         run: |
           python -m pip install --upgrade pip
           pip install ruff
-          if [ -f requirements.txt ]; then pip install -r requirements.txt; fi
+           pip install -r requirements.txt
       - name: Lint with ruff
         run: |
           # stop the build if there are Python syntax errors or undefined names