Update dotnet.yml

.github/workflows/dotnet.yml

@@ -1,6 +1,3 @@
-# This workflow will build a .NET project
-# For more information see: https://docs.github.com/en/actions/automating-builds-and-tests/building-and-testing-net
-
 name: .NET
 
 on:
@@ -11,18 +8,24 @@ on:
 
 jobs:
   build:
-
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v3
+    - name: Checkout code
+      uses: actions/checkout@v3
+      with:
+        submodules: 'recursive'  # Checkt Submodule rekursiv aus
+
     - name: Setup .NET
       uses: actions/setup-dotnet@v3
       with:
         dotnet-version: 6.0.x
+
     - name: Restore dependencies
       run: dotnet restore
+
     - name: Build
       run: dotnet build --no-restore
+
     - name: Test
       run: dotnet test --no-build --verbosity normal