tools: bump @node-core/doc-kit

Bumps the doc group with 1 update in the /tools/doc directory: [@node-core/doc-kit](https://github.com/nodejs/doc-kit).


Updates `@node-core/doc-kit` from 1.4.1 to 1.4.3
- [Release notes](https://github.com/nodejs/doc-kit/releases)
- [Changelog](https://github.com/nodejs/doc-kit/blob/main/CHANGELOG.md)
- [Commits](https://github.com/nodejs/doc-kit/commits/v1.4.3)

---
updated-dependencies:
- dependency-name: "@node-core/doc-kit"
  dependency-version: 1.4.3
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: doc
...

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Author: dependabot[bot]