fix: Corrige envio da apiKey da instância no payload do Flowise

Corrige o envio da apiKey no payload do Flowise para usar a apiKey específica da instância ao invés da apiKey global do sistema.

src/api/integrations/chatbot/flowise/services/flowise.service.ts

@@ -52,7 +52,7 @@ export class FlowiseService extends BaseChatbotService<Flowise, FlowiseSetting>
             pushName: pushName,
             instanceName: instance.instanceName,
             serverUrl: this.configService.get<HttpServer>('SERVER').URL,
-            apiKey: this.configService.get<Auth>('AUTHENTICATION').API_KEY.KEY,
+            apiKey: instance.token,
           },
         },
       };