Bump signal-hook from 0.3.15 to 0.3.17 (#138)

Bumps [signal-hook](https://github.com/vorner/signal-hook) from 0.3.15 to 0.3.17.
- [Changelog](https://github.com/vorner/signal-hook/blob/master/CHANGELOG.md)
- [Commits](vorner/signal-hook@v0.3.15...v0.3.17)

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

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