build(deps): bump bytemuck from 1.16.1 to 1.16.3 (servo#32955)

Bumps [bytemuck](https://github.com/Lokathor/bytemuck) from 1.16.1 to 1.16.3.
- [Changelog](https://github.com/Lokathor/bytemuck/blob/main/changelog.md)
- [Commits](Lokathor/bytemuck@v1.16.1...v1.16.3)

---
updated-dependencies:
- dependency-name: bytemuck
  dependency-type: indirect
  update-type: version-update:semver-patch
...

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Author: dependabot[bot]