Update python-app.yml

Author: priyagupta108

.github/workflows/python-app.yml

@@ -28,7 +28,7 @@ jobs:
       uses: actions/setup-python@v5
 
       with:
-        python-version: '3.x'
+        python-version: 3.11
     # - name: Install dependencies
     #   run: |
     #     python -m pip install --upgrade pip