Bump rack from 2.2.6.4 to 2.2.8.1#17

dependabot[bot] wants to merge 1 commit intosourceWinbobob/winbobob.github.io:sourcefrom

dependabot/bundler/rack-2.2.8.1Winbobob/winbobob.github.io:dependabot/bundler/rack-2.2.8.1Copy head branch name to clipboard