bump switchman

Change-Id: I874986eb46f017b287465cdacb41657ffb8fe4c1
Reviewed-on: https://gerrit.instructure.com/39532
Reviewed-by: Jacob Fugal <jacob@instructure.com>
Tested-by: Jenkins <jenkins@instructure.com>
Product-Review: Cody Cutrer <cody@instructure.com>
QA-Review: Cody Cutrer <cody@instructure.com>