Update python-app.yml

.github/workflows/python-app.yml

@@ -9,17 +9,13 @@ on:
 jobs:
   code-quality:
     runs-on: ubuntu-latest
-    strategy:
-      matrix:
-        python-version: [ 3.6 ]
     continue-on-error: false
-
     steps:
-      - uses: actions/checkout@v2
-      - name: Set up Python ${{ matrix.python-version }}
-        uses: actions/setup-python@v2
+      - uses: actions/checkout@v4
+      - name: Set up Python 3.12
+        uses: actions/setup-python@v5
         with:
-          python-version: ${{ matrix.python-version }}
+          python-version: 3.8
       - name: Install dependencies
         run: |
           sudo apt-get update