add missing submod to docker release

.github/workflows/docker.yml

@@ -74,7 +74,8 @@ jobs:
     steps:
       - name: Checkout code
         uses: actions/checkout@v2
-
+        with:
+          submodules: true  # This ensures that submodules are also checked out
       - name: Extract version from tag and Extract major, minor, and patch versions
         id: version_parts
         run: |