Bump haml from 3.1.6 to 5.0.0 in /doc/site#16

dependabot[bot] wants to merge 1 commit intomasterflyingmachine/whoops:masterfrom

dependabot/bundler/doc/site/haml-5.0.0flyingmachine/whoops:dependabot/bundler/doc/site/haml-5.0.0Copy head branch name to clipboard