Fix typo in setup.py (#46921)
Summary:
Also, be a bit future-proof in support version list
Pull Request resolved: https://github.com/pytorch/pytorch/pull/46921
Reviewed By: seemethere
Differential Revision: D24568733
Pulled By: malfet
fbshipit-source-id: ae34f8da1ed39b80dc34db0b06e4ef142104a3ff
