[CI]: TestLogsWithoutNewlineOrEOF flaky

### Description

This is yet another log related test that fails randomly.

### Steps to reproduce the issue

_No response_

### Describe the results you received and expected

```
=== RUN TestLogsWithoutNewlineOrEOF
=== PAUSE TestLogsWithoutNewlineOrEOF
=== CONT TestLogsWithoutNewlineOrEOF
container_logs_test.go:194: assertion failed: error is not nil: expected stdout to contain "Hello World!"
--- FAIL: TestLogsWithoutNewlineOrEOF (3.38s)
FAIL cmd/nerdctl/container.TestLogsWithoutNewli
```

### What version of nerdctl are you using?

main

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

None

### Host information

_No response_