Update html-proofer requirement from 4.4.1 to 5.0.6#91

dependabot[bot] wants to merge 1 commit intomainprogit/progit2-bg:mainfrom

dependabot/bundler/html-proofer-5.0.6progit/progit2-bg:dependabot/bundler/html-proofer-5.0.6Copy head branch name to clipboard