bump switchman

Change-Id: I95163638f9db1fc3ec9447d94f2f86c1ed24468d
Reviewed-on: https://gerrit.instructure.com/37319
Tested-by: Jenkins <jenkins@instructure.com>
Reviewed-by: James Williams  <jamesw@instructure.com>
Product-Review: Cody Cutrer <cody@instructure.com>
QA-Review: Cody Cutrer <cody@instructure.com>