[numpy] `torch.a{cos, tan}` : promote integer inputs to float (#47005)
Summary:
Reference https://github.com/pytorch/pytorch/issues/42515
Pull Request resolved: https://github.com/pytorch/pytorch/pull/47005
Reviewed By: mrshenli
Differential Revision: D24681097
Pulled By: mruberry
fbshipit-source-id: 2f29655a5f3871ee96c2bfd35c93f4d721730e37
