Update action.yml

.github/workflows/action.yml

@@ -47,6 +47,8 @@ jobs:
 
     steps:
     - uses: actions/checkout@v4
+      with:
+        submodules: 'recursive'
 
     - name: Set reusable strings
       # Turn repeated input strings (such as the build output directory) into step outputs. These step outputs can be used throughout the workflow file.