Force submopdule update

.gitea/workflows/source-release.yml

@@ -21,6 +21,11 @@ jobs:
           fetch-depth: 0
           submodules: recursive
 
+      - name: Update submodules explicitly
+        run: |
+          git submodule sync --recursive
+          git submodule update --init --recursive
+
       - name: Install build dependencies
         run: |
           apt-get update