Update cni spec to 0.4.0 for network plugin allowing it (#6053)

tests/testcases/040_check-network-adv.yml

@@ -63,7 +63,7 @@
     - debug:
         var: nca_pod.stdout_lines
       failed_when: not nca_pod is success
-      run_once: true
+      when: inventory_hostname == groups['kube-master'][0]
 
     - name: Get netchecker agents
       uri:
@@ -170,7 +170,7 @@
             name: macvlan-conf
           spec:
             config: '{
-              "cniVersion": "0.3.0",
+              "cniVersion": "0.4.0",
               "type": "macvlan",
               "master": "eth0",
               "mode": "bridge",