Update rubyzip requirement from ~> 2.3.0 to ~> 2.4.1 (#733)

Updates the requirements on [rubyzip](https://github.com/rubyzip/rubyzip) to permit the latest version.
- [Release notes](https://github.com/rubyzip/rubyzip/releases)
- [Changelog](https://github.com/rubyzip/rubyzip/blob/master/Changelog.md)
- [Commits](rubyzip/rubyzip@v2.3.0...v2.4.1)

---
updated-dependencies:
- dependency-name: rubyzip
  dependency-type: direct:development
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

fog-aws.gemspec

@@ -25,7 +25,7 @@ Gem::Specification.new do |spec|
   spec.add_development_dependency 'bundler'
   spec.add_development_dependency 'github_changelog_generator', '~> 1.16'
   spec.add_development_dependency 'rake',    '>= 12.3.3'
-  spec.add_development_dependency 'rubyzip', '~> 2.3.0'
+  spec.add_development_dependency 'rubyzip', '~> 2.4.1'
   spec.add_development_dependency 'shindo',  '~> 0.3'
 
   spec.add_dependency 'base64', '~> 0.2.0'