Bump thiserror from 1.0.50 to 1.0.51 in /native/html5ever_nif (#125)

Bumps [thiserror](https://github.com/dtolnay/thiserror) from 1.0.50 to 1.0.51.
- [Release notes](https://github.com/dtolnay/thiserror/releases)
- [Commits](dtolnay/thiserror@1.0.50...1.0.51)

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

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]