OZG-5580: Fix helm test

src/test/helm/network_policy_test.yaml

@@ -179,6 +179,9 @@ tests:
                   protocol: TCP
   
   - it: should add egress rule to zufi-server
+    set:
+      networkPolicy:
+        dnsServerNamespace: test-dns-namespace
     asserts:
       - contains:
           path: spec.egress