Remove skipTests and checkout submodules

Author: matthewelwell

.github/workflows/publish.yml

@@ -14,6 +14,8 @@ jobs:
 
     steps:
       - uses: actions/checkout@v4
+        with:
+          submodules: recursive
       - uses: actions/setup-java@v4
         with:
           distribution: adopt
@@ -36,5 +38,4 @@ jobs:
             --no-transfer-progress \
             --batch-mode \
             -Dgpg.passphrase=${{ secrets.OSSRH_GPG_SECRET_KEY_PASSWORD }} \
-            -DskipTests \
             clean deploy