modify yml

Author: Neang-Rothmny

.github/workflows/deploy.yml

@@ -15,11 +15,12 @@ jobs:
       - name: Set up Python
         uses: actions/setup-python@v4
         with:
-          python-version: '3.9'
+          python-version: '3.10'
 
       - name: Install backend dependencies
         run: |
           cd backend
+          pip install -r requirements.txt
           pip install -r requirements-dev.txt
       
       - name: Run backend tests