Bump rack from 2.2.4 to 2.2.6.2 in /server#45

dependabot[bot] wants to merge 1 commit intomainumd-lib/wstrack:mainfrom

dependabot/bundler/server/rack-2.2.6.2umd-lib/wstrack:dependabot/bundler/server/rack-2.2.6.2Copy head branch name to clipboard