Bump serialport from 4.3.0 to 4.4.0

Bumps [serialport](https://github.com/serialport/serialport-rs) from 4.3.0 to 4.4.0.
- [Changelog](https://github.com/serialport/serialport-rs/blob/main/CHANGELOG.md)
- [Commits](serialport/serialport-rs@v4.3.0...v4.4.0)

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

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]