chore(deps): update signal-hook requirement from 0.3.17 to 0.4.1 (#101)

Updates the requirements on [signal-hook](https://github.com/vorner/signal-hook) to permit the latest version.
- [Changelog](https://github.com/vorner/signal-hook/blob/master/CHANGELOG.md)
- [Commits](vorner/signal-hook@v0.3.17...v0.4.1)

---
updated-dependencies:
- dependency-name: signal-hook
  dependency-version: 0.4.1
  dependency-type: direct:production
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

Cargo.toml

@@ -65,7 +65,7 @@ ajj = { version = "0.4.1", features = ["axum", "ws", "ipc"] }
 axum = "0.8.1"
 eyre = "0.6.12"
 serial_test = "3.2.0"
-signal-hook = "0.3.17"
+signal-hook = "0.4.1"
 tokio = { version = "1.43.0", features = ["macros"] }
 
 [features]