Checkout submodules during release workflow (#10)

Author: samkim

.github/workflows/release.yaml

@@ -16,7 +16,7 @@ jobs:
     steps:
       - uses: "actions/checkout@v4"
         with:
-          fetch-depth: 0
+          submodules: "recursive"
       - name: "Log in to container registry"
         uses: "docker/[email protected]"
         with: