chore(deps-dev): bump web-specs from 4.2.0 to 4.3.0 (#29887)

Bumps [web-specs](https://github.com/w3c/browser-specs) from 4.2.0 to 4.3.0.
- [Release notes](https://github.com/w3c/browser-specs/releases)
- [Commits](https://github.com/w3c/browser-specs/compare/web-specs@4.2.0...web-specs@4.3.0)

---
updated-dependencies:
- dependency-name: web-specs
  dependency-version: 4.3.0
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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