Bump highlight.js from 9.15.6 to 10.4.1

Bumps [highlight.js](https://github.com/highlightjs/highlight.js) from 9.15.6 to 10.4.1.
- [Release notes](https://github.com/highlightjs/highlight.js/releases)
- [Changelog](https://github.com/highlightjs/highlight.js/blob/master/CHANGES.md)
- [Commits](highlightjs/highlight.js@9.15.6...10.4.1)

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]