Revert "Revert "Switch to using repo2docker with buildkit for building""#3231

yuvipanda merged 1 commit intomainjupyterhub/mybinder.org-deploy:mainfrom

revert-3228-revert-3225-buildxjupyterhub/mybinder.org-deploy:revert-3228-revert-3225-buildxCopy head branch name to clipboard