update deploy.yml to check out submodules for tests on deploy

Author: brokkoli71

.github/workflows/deploy.yml

@@ -7,7 +7,9 @@ jobs:
     runs-on: ubuntu-latest
     steps:
 
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
+        with:
+          submodules: true
 
       - name: Set up Java 11
         uses: actions/setup-java@v4