chore(deps): bump schema-utils from 4.2.0 to 4.3.0 (#185)

Bumps [schema-utils](https://github.com/webpack/schema-utils) from 4.2.0 to 4.3.0.
- [Release notes](https://github.com/webpack/schema-utils/releases)
- [Changelog](https://github.com/webpack/schema-utils/blob/master/CHANGELOG.md)
- [Commits](webpack/schema-utils@v4.2.0...v4.3.0)

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

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