bugfix: test-kitchen must be at least 1.0.0 to pass kitchen-vagrant requirements
bugfix: test-kitchen must be at least 1.0.0 to pass kitchen-vagrant requirements

test-kitchen is currently in the process of releasing version 1.0.0. to install its pre-release, the Gemfile must be updated. This version is required as a dependency for kitchen-vagrant and won't be pulled automatically since it's flagged as pre-release.

Signed-off-by: Dominik Richter <b7323add517e187efe0283b76511b7ed762bfe13@gmail.com>

rollbrettler/chef-os-hardening,hardening-io/chef-os-hardening,mikemoate/chef-os-hardening,creativemarket/chef-os-hardening,mikemoate/chef-os-hardening,patcon/chef-os-hardening,8x8Cloud/chef-os-hardening,rollbrettler/chef-os-hardening,patcon/chef-os-hardening,waz128/os-hardening,8x8Cloud/chef-os-hardening,dupuy/chef-os-hardening,dupuy/chef-os-hardening,hardening-io/chef-os-hardening,creativemarket/chef-os-hardening