ベンチ中fluent-bitのwarningが止まらない

```
fluent-bit  | [2022/07/02 02:02:13] [ warn] [http_client] cannot increase buffer: current=1000000 requested=1032768 max=1000000
fluent-bit  | [2022/07/02 02:02:18] [ warn] [http_client] cannot increase buffer: current=1000000 requested=1032768 max=1000000
```