Update CI workflow to fetch submodules during checkout and fix GITHUB_TOKEN issue

.github/workflows/ci.yml

@@ -18,8 +18,9 @@ jobs:
         uses: actions/checkout@v4
         with:
           submodules: true # Recursively clone submodules
-          token: ${{ secrets.GITHUB_TOKEN }} # Use built-in GITHUB_TOKEN for private submodules
           fetch-depth: 0 # Fetch full history to avoid issues with shallow clones
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
 
       # Pull the latest version of base images and rebuild without cache
       - name: Build and deploy