tools: bump js-yaml from 4.1.1 to 4.2.0 in /tools/doc in the doc group

Bumps the doc group in /tools/doc with 1 update: [js-yaml](https://github.com/nodeca/js-yaml).


Updates `js-yaml` from 4.1.1 to 4.2.0
- [Changelog](https://github.com/nodeca/js-yaml/blob/master/CHANGELOG.md)
- [Commits](https://github.com/nodeca/js-yaml/commits)

---
updated-dependencies:
- dependency-name: js-yaml
  dependency-version: 4.2.0
  dependency-type: direct:development
  update-type: version-update:semver-minor
  dependency-group: doc
...

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Author: dependabot[bot]