Preserve .ninja_log in build artifacts (#44390)
Summary:
Helpful for later analysis on the build time trends
Also, same .whl files out of regular linux build job
Pull Request resolved: https://github.com/pytorch/pytorch/pull/44390
Reviewed By: walterddr
Differential Revision: D23602049
Pulled By: malfet
fbshipit-source-id: 4d55c9aa2d161a7998ad991a3da0436da83f70ad
