OZG-3880 network-policy fix usermanager grpc port

src/main/helm/templates/network_policy.yaml

@@ -38,7 +38,7 @@ spec:
   - ports:
     - port: 8080
   - ports:
-    - port: 9090
+    - port: 9000
     from:
     - podSelector: 
         matchLabels:

src/test/helm/network_policy_test.yaml

@@ -62,7 +62,7 @@ tests:
             - ports:
               - port: 8080
             - ports:
-              - port: 9090
+              - port: 9000
               from:
               - podSelector: 
                   matchLabels: