bump switchman

Change-Id: Ida6ece6f8b226153a68cd30b0a86b52ac2d78ac8
Reviewed-on: https://gerrit.instructure.com/36325
Tested-by: Jenkins <jenkins@instructure.com>
Reviewed-by: Rob Orton <rob@instructure.com>
Product-Review: Cody Cutrer <cody@instructure.com>
QA-Review: Cody Cutrer <cody@instructure.com>