Enable CUDA 11 jobs for Windows nightly builds (#44086)
Summary:
Fixes https://github.com/pytorch/pytorch/pull/43366/files#r474333051.
Testing with https://github.com/pytorch/pytorch/pull/44007.
Pull Request resolved: https://github.com/pytorch/pytorch/pull/44086
Reviewed By: ezyang
Differential Revision: D23493553
Pulled By: malfet
fbshipit-source-id: 34b3e5b2e8dece5e97db9d507c34d61d33bd0863
