Fix Migrate error

.github/workflows/django.yml

@@ -25,17 +25,18 @@ jobs:
 
     steps:
     - uses: actions/checkout@v2
-    - name: Set up Python 3.9
+    - name: Set up Python 3.11
       uses: actions/setup-python@v2
       with:
-        python-version: 3.9
+        python-version: 3.11
     - name: Install dependencies
       run: |
         python -m pip install --upgrade pip
         pip install -r requirements.txt
     - name: Run migrations
-      run: python manage.py migrate
-    - name: Run tests
       run: |
         cd backend
+        python manage.py migrate
+    - name: Run tests
+      run: |
         python manage.py test