Format torch/onnx with ufmt (#82137)
This is the last batch for the new ufmt (black + usort) linter. After this, black linter can finally be replaced. The previous PR to format ONNX tests was #81335
Pull Request resolved: https://github.com/pytorch/pytorch/pull/82137
Approved by: https://github.com/kit1980, https://github.com/AllenTiTaiWang
