feat: add error event listeners to Redis pub/sub clients in IO adapter

src/common/adapters/redis-io.adapter.ts

@@ -25,6 +25,9 @@ export class RedisIoAdapter extends IoAdapter {
     const pubClient = new Redis({ host, port, password, db });
     const subClient = new Redis({ host, port, password, db });
 
+    pubClient.on('error', (err) => this.logger.error(`Redis pub error: ${err.message}`));
+    subClient.on('error', (err) => this.logger.error(`Redis sub error: ${err.message}`));
+
     await Promise.all([
       new Promise<void>((resolve) => pubClient.on('connect', resolve)),
       new Promise<void>((resolve) => subClient.on('connect', resolve)),