test_utils.py: Add another retry to test_download_url_to_file (#66159)
Summary:
Fixes one of the flakiness concerns mentioned https://github.com/pytorch/pytorch/issues/65439#issuecomment-934686485
Pull Request resolved: https://github.com/pytorch/pytorch/pull/66159
Reviewed By: ngimel
Differential Revision: D31406485
Pulled By: janeyx99
fbshipit-source-id: cf7834cdab58360ecef1748075d52969de2e0778
