Update test_app.yml

.github/workflows/test_app.yml

@@ -16,12 +16,16 @@ permissions:
 jobs:
   test:
     runs-on: ubuntu-latest
+    defaults:
+      run:
+        working-directory: ./
     steps:
     - uses: actions/checkout@v3
-    - name: Set up Python 3.10
+    - name: Set up Python
       uses: actions/setup-python@v3
       with:
-        python-version: "3.10"
+        python-version: "3.12"
+        cache: 'pip' 
     - name: Install dependencies
       run: |
         python -m pip install --upgrade pip