ninja 1.9.0 couldn't be installed, CI might be broken (#59625)
Summary:
I suddenly find that `pip install ninja==1.9.0 ` failed in CI.
And I tested locally and on another colleague's machine.
It looks it conflicts with cmake installed in conda.
https://app.circleci.com/pipelines/github/pytorch/pytorch/332470/workflows/d8b6ed30-1c7e-4863-898a-7f067c6202e1/jobs/13972409
1.10.0 couldn't be installed either.
Pull Request resolved: https://github.com/pytorch/pytorch/pull/59625
Reviewed By: jbschlosser
Differential Revision: D28966699
Pulled By: seemethere
fbshipit-source-id: a1150e411ba3b4ab65448a087aa65f4ebe6c3596
