Fix Vaas Java SDK example build issue in ci.yaml

.github/workflows/ci.yaml

@@ -100,20 +100,15 @@ jobs:
           minikube kubectl -- get pods --namespace vaas || true
           minikube kubectl -- wait --for=condition=ready pods --namespace vaas --timeout=300s --all
 
-      - name: Set up vaas host
-        run: |
-          sudo echo "vaas $(minikube ip)" | sudo tee -a /etc/hosts
-
       - name: Checkout Vaas Java SDK
         uses: actions/checkout@v4
         with:
           repository: GDATASoftwareAG/vaas
 
       - name: Run Java SDK Example
         run: |
-          curl -s "https://get.sdkman.io" | bash
-          source "$HOME/.sdkman/bin/sdkman-init.sh"
-          sdk install gradle 7.2
+          sudo echo "vaas $(minikube ip)" | sudo tee -a /etc/hosts
+          cat /etc/hosts
           cd ./java
           export SCAN_PATH=$(pwd)/build.gradle
           export CLIENT_ID=vaas