[tests] use npm ci (#280)
[tests] use npm ci (#280)

* [tests] use sudo to upgrade npm

* [tests] update and cleanup CircleCI config

* Trigger CircleCI build

* [tests] use sudo

* Revert "[tests] update and cleanup CircleCI config"

This reverts commit f10f6dc4ccd40eda17b8d38172bbfe3d51aabc7a.

* Trigger CircleCI build

* tests: do not upgrade npm

* chore: trigger new build

* chore: use Node.js 10

dollarshaveclub/stickybits,dollarshaveclub/stickybits