Bump activesupport from 4.0.2 to 4.2.11.3#3

dependabot[bot] wants to merge 1 commit intomasterSTUDITEMPS/heroku-buildpack-turbo-sprockets:masterfrom

dependabot/bundler/activesupport-4.2.11.3STUDITEMPS/heroku-buildpack-turbo-sprockets:dependabot/bundler/activesupport-4.2.11.3Copy head branch name to clipboard