Add host information for canal readiness probe (#4548)

roles/network_plugin/canal/templates/canal-node.yaml.j2

@@ -249,6 +249,7 @@ spec:
             privileged: true
           livenessProbe:
             httpGet:
+              host: 127.0.0.1
               path: /liveness
               port: 9099
             periodSeconds: 10
@@ -257,6 +258,7 @@ spec:
           readinessProbe:
 {% if calico_version is version('v3.3.0', '<')%}
             httpGet:
+              host: 127.0.0.1
               path: /readiness
               port: 9099
 {% else %}