Add dual stack fix's presence for AZR in CNS heartbeat metric (#3414)

add dual stack fix's presence for azr in cns heartbeat metric

Author: smittal22

cns/logger/constants.go

@@ -11,6 +11,7 @@ const (
 	NodeIDStr                       = "NodeID"
 	HomeAZStr                       = "HomeAZ"
 	IsAZRSupportedStr               = "IsAZRSupported"
+	IsAZRDualStackFixPresentStr     = "IsAZRDualStackFixPresent"
 	HomeAZErrorCodeStr              = "HomeAZErrorCode"
 	HomeAZErrorMsgStr               = "HomeAZErrorMsg"
 	CNSConfigPropertyStr            = "CNSConfiguration"

cns/metric/heartbeat.go

@@ -38,6 +38,7 @@ func SendHeartBeat(ctx context.Context, heartbeatInterval time.Duration, homeAzM
 				case types.Success:
 					metric.CustomDimensions[logger.IsAZRSupportedStr] = strconv.FormatBool(getHomeAzResp.HomeAzResponse.IsSupported)
 					metric.CustomDimensions[logger.HomeAZStr] = strconv.FormatUint(uint64(getHomeAzResp.HomeAzResponse.HomeAz), 10)
+					metric.CustomDimensions[logger.IsAZRDualStackFixPresentStr] = strconv.FormatBool(getHomeAzResp.HomeAzResponse.NmaAppliedTheIPV6Fix)
 				default:
 					metric.CustomDimensions[logger.HomeAZErrorCodeStr] = getHomeAzResp.Response.ReturnCode.String()
 					metric.CustomDimensions[logger.HomeAZErrorMsgStr] = getHomeAzResp.Response.Message