keep shard ids consistent between spec blocks
keep shard ids consistent between spec blocks

otherwise connection pools won't reuse connections, and you'll run out

Change-Id: I66b6e0be125763cd623a91046ae3b74292dc8432
Reviewed-on: https://gerrit.instructure.com/30432
Tested-by: Jenkins <d95b56ce41a2e1ac4cecdd398defd7414407cc08@instructure.com>
Reviewed-by: Jacob Fugal <f862f167b85d41b225785c70d70808bc7337c1fe@instructure.com>
Product-Review: Cody Cutrer <c4fe2b1d90ef8f2548c8aeabfa633434316f0305@instructure.com>
QA-Review: Cody Cutrer <c4fe2b1d90ef8f2548c8aeabfa633434316f0305@instructure.com>

ccutrer/switchman,krrg/switchman,instructure/switchman,instructure/switchman