[core] GOWS - start session in the background

src/core/engines/gows/session.gows.core.ts

@@ -288,14 +288,12 @@ export class WhatsappSessionGoWSCore extends WhatsappSession {
       grpc.credentials.createInsecure(),
     );
 
-    try {
-      await promisify(this.client.StartSession)(request);
-    } catch (err) {
+    promisify(this.client.StartSession)(request).catch((err) => {
       this.logger.error('Failed to start the client');
       this.logger.error(err, err.stack);
       this.status = WAHASessionStatus.FAILED;
       throw err;
-    }
+    });
   }
 
   protected getProxyUrl(config: ProxyConfig): string {