Set test owner for fx (#66807)
Summary:
Action following https://github.com/pytorch/pytorch/issues/66232
Pull Request resolved: https://github.com/pytorch/pytorch/pull/66807
Reviewed By: jamesr66a
Differential Revision: D31736722
Pulled By: janeyx99
fbshipit-source-id: 5ffcb02a858137211bff1eabf158001dcb0359a6
