by using the PARALLEL_INDEX env var in the file store path prefix
this is a frequest issue in the FSC where parallel runners with
identical databases run identical tests, but may be an issue
with RspecQ as well
test plan: specs pass
closes DE-1448
Change-Id: I7ccc793c0c8da8e59099eceb7242068a099d8a23
Reviewed-on: https://gerrit.instructure.com/c/canvas-lms/+/304740
Tested-by: Service Cloud Jenkins <svc.cloudjenkins@instructure.com>
Reviewed-by: Aaron Ogata <aogata@instructure.com>
Build-Review: Aaron Ogata <aogata@instructure.com>
QA-Review: Jeremy Stanley <jeremy@instructure.com>
Product-Review: Jeremy Stanley <jeremy@instructure.com>