Require yarn>=1.0.0
Require yarn>=1.0.0

needed since https://github.com/ManageIQ/manageiq-ui-classic/pull/5204,
making the depencency explicit

ManageIQ/manageiq-ui-classic,ManageIQ/manageiq-ui-classic,ManageIQ/manageiq-ui-classic,ManageIQ/manageiq-ui-classic