chore: bump signal-hook from 0.1.15 to 0.2.3 (#17827)

Bumps [signal-hook](https://github.com/vorner/signal-hook) from 0.1.15 to 0.2.3.
- [Release notes](https://github.com/vorner/signal-hook/releases)
- [Changelog](https://github.com/vorner/signal-hook/blob/v0.2.3/CHANGELOG.md)
- [Commits](https://github.com/vorner/signal-hook/compare/v0.1.15...v0.2.3)

---
updated-dependencies:
- dependency-name: signal-hook
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

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

Cargo.lock

@@ -4016,9 +4016,9 @@ checksum = "7fdf1b9db47230893d76faad238fd6097fd6d6a9245cd7a4d90dbd639536bbd2"
 
 [[package]]
 name = "signal-hook"
-version = "0.1.15"
+version = "0.2.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8ff2db2112d6c761e12522c65f7768548bd6e8cd23d2a9dae162520626629bd6"
+checksum = "844024c8913df6bfbfeee3061075ccc47216a897ac0b54a683dea3dfe16d19af"
 dependencies = [
  "libc",
  "signal-hook-registry",

ledger-tool/Cargo.toml

@@ -43,7 +43,7 @@ tokio = { version = "1", features = ["full"] }
 assert_cmd = "1.0"
 
 [target."cfg(unix)".dependencies]
-signal-hook = "0.1.15"
+signal-hook = "0.2.3"
 
 [package.metadata.docs.rs]
 targets = ["x86_64-unknown-linux-gnu"]

validator/Cargo.toml

@@ -51,7 +51,7 @@ symlink = "0.1.0"
 
 [target."cfg(unix)".dependencies]
 libc = "0.2.81"
-signal-hook = "0.1.15"
+signal-hook = "0.2.3"
 
 [package.metadata.docs.rs]
 targets = ["x86_64-unknown-linux-gnu"]