Detaching after attach should return exitcode 1

### Description

```
docker run -it --detach-keys=ctrl-a,ctrl-b --name what ghcr.io/stargz-containers/alpine:3.13-org
docker attach --detach-keys=ctrl-a,ctrl-b what; echo $?
/ # read escape sequence
1
```

nerdctl returns 0.

### Steps to reproduce the issue

_No response_

### Describe the results you received and expected

na

### What version of nerdctl are you using?

main

### Are you using a variant of nerdctl? (e.g., Rancher Desktop)

None

### Host information

_No response_