tests/scsi_recovery.rs:
- Add `use std::time::Duration` inside both `#[cfg(target_os = "linux")]`
blocks. Locally on macOS the linux blocks are cfg-out so the missing
import was invisible to precommit on macOS.
- Bug pre-dated this branch but only surfaced when v0.17.2 release CI
ran the test compile on Linux.
Cargo.toml: 0.17.2 -> 0.17.3.