Update build-test.yml

.github/workflows/build-test.yml

@@ -63,9 +63,15 @@ jobs:
    runs-on: ubuntu-latest
    steps: 
     - uses: actions/checkout@v2
-      with:
-        submodules: true
-
+    - name: Setup submodule
+      run: |
+        git submodule update --init --recursive
+    - name: Pull engine updates
+      uses: space-wizards/submodule-dependency@v0.1.5
+    - name: Update Engine Submodules
+      run: |
+        cd RobustToolbox/
+        git submodule update --init --recursive
     - name: Setup .NET Core
       uses: actions/setup-dotnet@v1
       with: