WebSocket handle function missing error handling

[WankkoRee]

solana-go/rpc/ws/client.go

Lines 171 to 184 in 790032b

	func (c *Client) handleMessage(message []byte) {
	// when receiving message with id. the result will be a subscription number.
	// that number will be associated to all future message destine to this request
	requestID, ok := getUint64WithOk(message, "id")
	if ok {
	subID, _ := getUint64WithOk(message, "result")
	c.handleNewSubscriptionMessage(requestID, subID)
	return
	}
	subID, _ := getUint64WithOk(message, "params", "subscription")
	c.handleSubscriptionMessage(subID, message)
	}

message may return error when I subscribe:

{"jsonrpc":"2.0","error":{"code":-32601,"message":"Method not found"},"id":7534392980301594513}

so we need to handle errors before getUint64WithOk(message, "result").

[Davincible]

+1 for this