`WebSocketPeer.put_packet()` fails with no error printed when the socket is disconnected

### Tested versions

Reproducible in the 4.3-stable.

### System information

Ubuntu 22.04, 4.3-stable

### Issue description

WebSocketPeer.get_ready_state returns 1 when the socket is actually disconnected.
WebSocketPeer.put_packet puts packets into the void with no indication that something went wrong.

IIRC, this is not how websockets are supposed to work.

### Steps to reproduce

```gdscript
var socket = WebSocketPeer.new()
socket.connect_to_url(secure_url)
... wait for it to connect, then pull the cable
socket.poll()
socket.get_ready_state() # this returns 1
socket.put_packet(packet) # this doesn't report anything either
```

### Minimal reproduction project (MRP)

N/A