tools: update doc dependencies

- hightlight.js@11.9.0
- remark-frontmatter@5.0.0
- remark-gfm@4.0.0
- remark-html@16.0.1
- remark-parse@11.0.0
- remark-rehype@11.0.0
- unified@11.0.3

PR-URL: nodejs#49988
Reviewed-By: Moshe Atlow <moshe@atlow.co.il>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Michael Dawson <midawson@redhat.com>
Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com>

Author: nodejs-github-bot