.ci: Add nightly trigger, remove CircleCI linux binary builds (#70957)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/70957
Adds nightly trigger for github actions using a workflow that will pull
down viable/strict and tag it as `nightly` and then re-push it up to the
repository.
Also removes CircleCI linux binary builds since they will now be
outmoded in favor of our new GHA workflow
Signed-off-by: Eli Uriegas <eliuriegas@fb.com>
Test Plan: Imported from OSS
Reviewed By: suo
Differential Revision: D33535609
Pulled By: seemethere
fbshipit-source-id: ca6402df37db46e1872ff25befe96afa12e7b1af
