spec fix mysql spec for user merge

the timestamp for the enrollments was off by a
fraction of a second which was not stored in mysql
this caused them to be equal and it would pick one
to delete. now it will order off of state and work

fixes CNVS-11791

test plan
 - specs should pass

Change-Id: I078d9612c86261647efca3b9a92ada1ee07d5b66
Reviewed-on: https://gerrit.instructure.com/32380
Reviewed-by: Bryan Madsen <bryan@instructure.com>
Product-Review: Bryan Madsen <bryan@instructure.com>
QA-Review: Bryan Madsen <bryan@instructure.com>
Tested-by: Jenkins <jenkins@instructure.com>