Bump test-unit from 3.7.3 to 3.7.4#352

dependabot[bot] wants to merge 1 commit intomainruby-i18n/ruby-cldr:mainfrom

dependabot/bundler/test-unit-3.7.4ruby-i18n/ruby-cldr:dependabot/bundler/test-unit-3.7.4Copy head branch name to clipboard