build(deps): bump respec from 27.0.6 to 28.0.3
build(deps): bump respec from 27.0.6 to 28.0.3

Bumps [respec](https://github.com/w3c/respec) from 27.0.6 to 28.0.3.
- [Release notes](https://github.com/w3c/respec/releases)
- [Changelog](https://github.com/w3c/respec/blob/develop/CHANGELOG.md)
- [Commits](https://github.com/w3c/respec/compare/v27.0.6...v28.0.3)

---
updated-dependencies:
- dependency-name: respec
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@github.com>
w3c/spec-generator,w3c/spec-generator,w3c/spec-generator