message: fix: incorrect 5xx rate calculation
diff: @@ -1188,7 +1188,7 @@ func (r *ClickHouseReader) GetServices(ctx context.Context, queryParams *model.G
  m4xx := make(map[string]uint64)
  for j := range service4xxItems {
  - m5xx[service4xxItems[j].ServiceName] = service4xxItems[j].Num4XX
  + m4xx[service4xxItems[j].ServiceName] = service4xxItems[j].Num4XX
  }
  for i := range serviceItems {
  