[workflow] clone recursive

.github/workflows/main.yml

@@ -62,21 +62,23 @@ jobs:
     steps:
       - name: Checkout code
         uses: actions/checkout@v4
+        with:
+          submodules: recursive
 
       - name: Set up Python
         uses: actions/setup-python@v5
         with:
           python-version: '3.x'
-      
+
       - name: Create Virtual Environment
         run: python -m venv venv
-      
+
       - name: Activate venv
         run: source venv/bin/activate
-      
+
       - name: Build
         run: python pys/pre_commit.py --build
-      
+
       - name: Replace server IP in JavaScript
         run: |
           sed -i 's|const serverip = "localhost";|const serverip = "${{ secrets.IP_FOR_SERVER }}";|g' build/app.js