[#22] Use cluster DNS to resolve IP for RO-Hooks

Author: nigthknight

.github/workflows/ci.yaml

@@ -359,8 +359,7 @@ jobs:
         run: |
           helm -n integration-tests install test-scan ./scanner/test-scan/ --set="parserImage.tag=sha-$(git rev-parse --short HEAD)"
           helm -n integration-tests install http-webhook ./demo-apps/http-webhook
-          WEB_HOOK_IP=$(kubectl get -n integration-tests service/http-webhook -o jsonpath='{.spec.clusterIP}')
-          helm -n integration-tests install ro-hook ./hooks/generic-webhook/ --set="webhookUrl=http://$WEB_HOOK_IP/hallo-welt"
+          helm -n integration-tests install ro-hook ./hooks/generic-webhook/ --set="webhookUrl=http://http-webhook/hallo-welt"
           cd tests/integration/
           npx jest --ci --color read-only-hook
           helm -n integration-tests uninstall test-scan http-webhook ro-hook