Bump rubyzip from 1.2.2 to 2.0.0 in /docs (#53)

Bumps [rubyzip](https://github.com/rubyzip/rubyzip) from 1.2.2 to 2.0.0.
- [Release notes](https://github.com/rubyzip/rubyzip/releases)
- [Changelog](https://github.com/rubyzip/rubyzip/blob/master/Changelog.md)
- [Commits](https://github.com/rubyzip/rubyzip/compare/v1.2.2...v2.0.0)

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

Co-authored-by: Mattia Iavarone <mat.iavarone@gmail.com>