build(deps): bump nokogiri from 1.11.2 to 1.11.4 in /docs

Bumps [nokogiri](https://github.com/sparklemotion/nokogiri) from 1.11.2 to 1.11.4.
- [Release notes](https://github.com/sparklemotion/nokogiri/releases)
- [Changelog](https://github.com/sparklemotion/nokogiri/blob/main/CHANGELOG.md)
- [Commits](https://github.com/sparklemotion/nokogiri/compare/v1.11.2...v1.11.4

)

Signed-off-by: dependabot[bot] <support@github.com>