chore: fix workflow

.gitea/workflows/on_docserver.yaml

@@ -27,6 +27,10 @@ jobs:
         #   submodules: 'recursive'
         # Defs in https://github.com/actions/checkout
         #run: echo "💡 The ${{ gitea.repository }} repository has been cloned to the runner."
+      - name: Submodules update
+        run: |
+          cd ${{ gitea.workspace }}          
+          git submodule update --init --recursive
       - name: Install Rust
         run: |
           printf "\n\t🐋 Installing dependencies 🐋\t\n"