request to https://api.devnet.solana.com/ failed, reason: connect ECONNREFUSED

> 해결된 에러라면 라벨에 'Complete' 를 달아주세요.
> 미해결된 에러라면 라벨을 'In progress' 로 변경해주세요.

### 어떤 에러인가요?
- 너무 많은 요청을 해서 솔라나 데브넷 서버 락먹음

### 에러 메시지

```bash
FetchError: request to https://api.devnet.solana.com/ failed, reason: connect ECONNREFUSED 147.75.42.217:443
at ClientRequest. (/Users/nahyun/node_modules/node-fetch/lib/index.js:1491:11)
at ClientRequest.emit (node:events:394:28)
at TLSSocket.socketErrorListener (node:_http_client:447:9)
at TLSSocket.emit (node:events:394:28)
at emitErrorNT (node:internal/streams/destroy:157:8)
at emitErrorCloseNT (node:internal/streams/destroy:122:3)
at processTicksAndRejections (node:internal/process/task_queues:83:21) {
type: 'system',
errno: 'ECONNREFUSED',
code: 'ECONNREFUSED'
}```

### 에러 핸들링 방법

-
```js
// 코드가 들어가도 좋아요!
```

### 에러 핸들링을 위해 참고한 레퍼런스 링크

[링크]()

Start with the reported request to https://api.devnet.solana.com/ and the node-fetch stack trace pointing to node_modules/node-fetch/lib/index.js:1491:11. Reproduce the ECONNREFUSED failure and locate the project code that makes the request; the issue does not define a specific code change or completion test.

Written by the indexing model from the issue text.