Function refreshQR

refreshQR(): Promise<AuthCode | null>
Refresh the current QRCode when is waiting for scan and return the current code

For legacy: It will wait for next code For multidevice: It will generate a new one

Returns Promise<AuthCode | null>
Example
```
await WPP.conn.refreshQR();
```
- Defined in src/conn/functions/refreshQR.ts:33