Bump rack from 2.2.17 to 2.2.18 in /benchmarks/shipit#410

k0kubun merged 1 commit intomainruby/ruby-bench:mainfrom

dependabot/bundler/benchmarks/shipit/rack-2.2.18ruby/ruby-bench:dependabot/bundler/benchmarks/shipit/rack-2.2.18Copy head branch name to clipboard