spec: build_client_apps npm issue

Change-Id: I05735a294df9fa54dba805fbdac13d44a543e71f
Reviewed-on: https://gerrit.instructure.com/42891
Tested-by: Jenkins <jenkins@instructure.com>
Reviewed-by: Bryan Madsen <bryan@instructure.com>
Product-Review: Bryan Madsen <bryan@instructure.com>
QA-Review: Bryan Madsen <bryan@instructure.com>