Set test owners for onnx tests (#66860)
Summary:
Action following https://github.com/pytorch/pytorch/issues/66232
Pull Request resolved: https://github.com/pytorch/pytorch/pull/66860
Reviewed By: malfet
Differential Revision: D31964696
Pulled By: janeyx99
fbshipit-source-id: 4e77d1bda92d9107ca0b90a06d24fa4477ceaffa
