Bump tokio-serial from 5.4.4 to 5.4.5 (#221)

Bumps [tokio-serial](https://github.com/berkowski/tokio-serial) from 5.4.4 to 5.4.5.
- [Changelog](https://github.com/berkowski/tokio-serial/blob/master/CHANGELOG.md)
- [Commits](https://github.com/berkowski/tokio-serial/commits)

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

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