[skip ci]Update grafana format (#13428)

Signed-off-by: Weida Zhu <weida.zhu@zilliz.com>

deployments/monitor/grafana/milvus-dashboard.json

@@ -16,7 +16,7 @@
   "gnetId": null,
   "graphTooltip": 0,
   "id": 27,
-  "iteration": 1639531529303,
+  "iteration": 1639553003214,
   "links": [],
   "panels": [
     {
@@ -4040,8 +4040,7 @@
       {
         "allValue": null,
         "current": {
-          "isNone": true,
-          "selected": true,
+          "selected": false,
           "text": "None",
           "value": ""
         },
@@ -4072,10 +4071,13 @@
       {
         "allValue": null,
         "current": {
-          "isNone": true,
           "selected": false,
-          "text": "None",
-          "value": ""
+          "text": [
+            "None"
+          ],
+          "value": [
+            ""
+          ]
         },
         "datasource": "$datasource",
         "definition": "label_values(go_info{namespace=\"$namespace\", app_kubernetes_io_instance=~\"$instance\",app_kubernetes_io_name=\"$app_name\"} , pod)",
@@ -4104,7 +4106,7 @@
       {
         "allValue": null,
         "current": {
-          "selected": true,
+          "selected": false,
           "text": [
             "None"
           ],
@@ -4172,5 +4174,5 @@
   "timezone": "browser",
   "title": "Milvus2.0",
   "uid": "uLf5cJ3Gz",
-  "version": 206
+  "version": 208
 }