Update dependency python to 3.14

Author: renovate[bot]

.github/workflows/python-app.yml

@@ -19,7 +19,7 @@ jobs:
     - name: Set up Python 3.9
       uses: actions/setup-python@v2
       with:
-        python-version: 3.9
+        python-version: 3.14
     - name: Install dependencies
       run: |
         python -m pip install --upgrade pip