Update Python version to 3.11 in workflow

Author: xuwei-fit2cloud

.github/workflows/mike-deploy.yml

@@ -17,7 +17,7 @@ jobs:
     - name: Set up Python
       uses: actions/setup-python@v3
       with:
-        python-version: '3.x'
+        python-version: '3.11'
     - name: Install dependencies
       run: |
         python -m pip install --upgrade pip