ci: fix python-version for static-code-analysis (#439)

Signed-off-by: Jan Kowalleck <jan.kowalleck@gmail.com>

Author: jkowalleck

.github/workflows/python.yml

@@ -79,7 +79,7 @@ jobs:
         # see https://github.com/actions/setup-python
         uses: actions/setup-python@v4
         with:
-          python-version: ${{ env.PYTHON_VERISON_DEFAULT }}
+          python-version: ${{ matrix.python-version }}
           architecture: 'x64'
       - name: Install poetry
         # see https://github.com/marketplace/actions/setup-poetry