Copy over test reports before running "report results" for linux test jobs (#56725)
Summary:
This way, if report results fail, the test reports are still saved as artifacts so we could use them to help us debug.
Pull Request resolved: https://github.com/pytorch/pytorch/pull/56725
Test Plan: CI linux test to pass + see that the test reports are copied in the Run tests step
Reviewed By: samestep
Differential Revision: D27948434
Pulled By: janeyx99
fbshipit-source-id: 597a2ba4fe1dca16c7b75a1399600b27f380f5cd
