Bump middleman from 4.2.0 to 4.3.11#28

dependabot[bot] wants to merge 1 commit intodevSmartBear/cucumberstudio-api-documentation:devfrom

dependabot/bundler/dev/middleman-4.3.11SmartBear/cucumberstudio-api-documentation:dependabot/bundler/dev/middleman-4.3.11Copy head branch name to clipboard