build: bump rubyzip from 2.2.0 to 2.3.0 in /docs

Bumps [rubyzip](https://github.com/rubyzip/rubyzip) from 2.2.0 to 2.3.0.
- [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/v2.2.0...v2.3.0

)

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

docs/Gemfile.lock

@@ -231,7 +231,7 @@ GEM
     rouge (3.13.0)
     ruby-enum (0.7.2)
       i18n
-    rubyzip (2.2.0)
+    rubyzip (2.3.0)
     safe_yaml (1.0.5)
     sass (3.7.4)
       sass-listen (~> 4.0.0)