OZG-6499: Fix tests for approach to fix DNS issue

src/test/helm/deployment_defaults_env_test.yaml

@@ -48,7 +48,7 @@ tests:
           path: spec.template.spec.containers[0].env
           content:
             name: grpc_client_vorgang-manager_address
-            value: vorgang-manager.sh-helm-test:9090
+            value: dns:///vorgang-manager.sh-helm-test:9090
       - contains:
           path: spec.template.spec.containers[0].env
           content:

src/test/helm/deployment_vorgang_manager_address_env_test.yaml

@@ -46,4 +46,4 @@ tests:
           path: spec.template.spec.containers[0].env
           content:
             name: grpc_client_vorgang-manager_address
-            value: my-test-vorgang-manager-name.sh-helm-test:9090
+            value: dns:///my-test-vorgang-manager-name.sh-helm-test:9090