SDK can't restore connection after disconnection

SDK can't restore connection after disconnection

```go
package main

import "github.com/manticoresoftware/go-sdk/manticore"
import "fmt"

func main() {
cl := manticore.NewClient()
cl.SetServer("127.0.0.1", 9311)
_, err := cl.Open()
if err != nil {
fmt.Println(err)
}
for ;; {
search := manticore.NewSearch("аватар", "idx_movies", "")
search.Limit = 10
res, err := cl.RunQuery(search)
if err != nil {
fmt.Println(err)
continue
}
for _, item := range res.Matches {
fmt.Println(item.Attrs[0])
}
}
}
```
Just run this sample, make sure the results start showing up and restart manticore after few seconds. The connection will not be restored and the program will continue to give an error (_write tcp 127.0.0.1:49914->127.0.0.1:9311: write: broken pipe_) despite the fact that the Manticore is already available

Start with the sample's NewClient, Open, and RunQuery flow in the Go SDK, then run it against Manticore and restart the server as described. Trace how the client handles the broken-pipe error; done means the connection is restored and search results continue without restarting the program.

Written by the indexing model from the issue text.