ci: attempt to reuse config for Circle (#8632)
ci: attempt to reuse config for Circle (#8632)

* ci: attempt to reuse config per https://circleci.com/docs/2.0/reusing-config

* chore: update version

ChristopherBiscardi/gatsby,mingaldrichgan/gatsby,gatsbyjs/gatsby,0x80/gatsby,gatsbyjs/gatsby,ChristopherBiscardi/gatsby,ChristopherBiscardi/gatsby,0x80/gatsby,mingaldrichgan/gatsby,gatsbyjs/gatsby,mingaldrichgan/gatsby,gatsbyjs/gatsby,0x80/gatsby,gatsbyjs/gatsby,ChristopherBiscardi/gatsby,gatsbyjs/gatsby