ci: Move buck-build-test to periodic
Moves the buck-build-test to periodic, and moves it outside of the
revert criteria for the pytorch_oss_ci oncall
Signed-off-by: Eli Uriegas <eliuriegasfb.com>
Pull Request resolved: https://github.com/pytorch/pytorch/pull/79797
Approved by: https://github.com/linbinyu
