[Snyk] Security upgrade puma from 3.6.2 to 3.12.6#34

snyk-bot wants to merge 2 commits intomasterenterstudio/react-webpack-rails-tutorial:masterfrom

snyk-fix-93bb22c682347b7af69882f328fe4865enterstudio/react-webpack-rails-tutorial:snyk-fix-93bb22c682347b7af69882f328fe4865Copy head branch name to clipboard