dashboard: fix "notZero" param typo of "clusterNode" command in SentinelApiClient (#1155)

sentinel-dashboard/src/main/java/com/alibaba/csp/sentinel/dashboard/client/SentinelApiClient.java

@@ -393,7 +393,7 @@ public class SentinelApiClient {
      * @return
      */
     public List<NodeVo> fetchClusterNodeOfMachine(String ip, int port, boolean includeZero) {
-        String type = "noZero";
+        String type = "notZero";
         if (includeZero) {
             type = "zero";
         }