Use git cli to checkout submodules

.gitea/workflows/build-debian-package.yml

@@ -14,12 +14,12 @@ jobs:
         run: git clone ${{ gitea.server_url }}/${{ gitea.repository }}.git .
       - name: "Git checkout"
         run: git checkout "${{ gitea.sha }}"
+      - name: "Submodules auschecken"
+        run: git submodules update --init
       - name: "Dotnet SDK einrichten"
         uses: actions/setup-dotnet@v4
         with:
           dotnet-version: "10.0.x"
-      - name: "Oqtane Framework auschecken"
-        run: git clone ${{ gitea.server_url }}/Diplomarbeit-Absolventenverein/oqtane.framework.git
       - name: "Oqtane Framework restore"
         run: dotnet restore ./oqtane.framework/Oqtane.slnx --verbosity detailed
       - name: "Oqtane Framework bauen"

.gitmodules

@@ -0,0 +1,6 @@
+[submodule "alumnihub_10.0_amd64/opt/alumnihub-helpers"]
+	path = alumnihub_10.0_amd64/opt/alumnihub-helpers
+	url = https://git.kocoder.xyz/Diplomarbeit-Absolventenverein/Customer.git
+[submodule "oqtane.framework"]
+	path = oqtane.framework
+	url = https://git.kocoder.xyz/Diplomarbeit-Absolventenverein/oqtane.framework.git