feat(dev): add 3.4.0-preview2 to GitHub workflow

Author: bbenno

.github/workflows/main.yml

@@ -18,6 +18,7 @@ jobs:
           - '3.1'
           - '3.2'
           - '3.3'
+          - '3.4.0-preview2'
 
     steps:
     - uses: actions/checkout@v4

human_languages.gemspec

@@ -33,8 +33,7 @@ Gem::Specification.new do |spec|
   spec.executables = spec.files.grep(%r{\Aexe/}) { |f| File.basename(f) }
   spec.require_paths = ['lib']
 
-  # Uncomment to register a new dependency of your gem
-  # spec.add_dependency "example-gem", "~> 1.0"
+  spec.add_dependency('csv', '~> 3.0')
 
   # For more information and examples about making a new gem, check out our
   # guide at: https://bundler.io/guides/creating_gem.html