.circleci: Prefer netrc for docs push (#42136)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/42136
Expect was giving weird issues so let's just use netrc since it doesn't
rely on janky expect behavior
Another follow up for: https://github.com/pytorch/pytorch/pull/41964
Signed-off-by: Eli Uriegas <eliuriegas@fb.com>
Test Plan: Imported from OSS
Reviewed By: yns88
Differential Revision: D22778940
Pulled By: seemethere
fbshipit-source-id: 1bdf879a5cfbf68a7d2d34b6966c20f95bd0a3b5
