Bump snapbox from 0.4.15 to 0.4.16

Bumps [snapbox](https://github.com/assert-rs/trycmd) from 0.4.15 to 0.4.16.
- [Changelog](https://github.com/assert-rs/trycmd/blob/main/CHANGELOG.md)
- [Commits](assert-rs/snapbox@snapbox-v0.4.15...snapbox-v0.4.16)

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

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