Update ci_test.yml

.github/workflows/ci_test.yml

@@ -18,6 +18,8 @@ jobs:
     steps:
       # Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it
       - uses: actions/checkout@v2
+        with:
+          submodules: true
       
       - name: Updating submodules
         run: |