spec: test thin upgrade

Change-Id: I20e4824a65eac59efbc484b2cc4be9fd11cfce02
Reviewed-on: https://gerrit.instructure.com/43641
Tested-by: Jenkins <jenkins@instructure.com>
Product-Review: Bryan Madsen <bryan@instructure.com>
Reviewed-by: Bryan Madsen <bryan@instructure.com>
QA-Review: Bryan Madsen <bryan@instructure.com>