Merge pull request #158 from michaeltryby/dev-fix-sdist

Enable submodule checkout in sdist build workflow

Author: michaeltryby

.github/workflows/build_wheel.yml

@@ -46,6 +46,8 @@ jobs:
     steps:
       - name: Checkout repo
         uses: actions/checkout@v5
+        with:
+          submodules: true
       - name: Install Python
         uses: actions/setup-python@v5
         with: