[Functional Optim] Test kwargs parity for SGD (#62078)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/62078
Ensure that kwarg arguments such as momentum and weight decay maintain
parity between optimizer.step and step_param.
ghstack-source-id: 134330377
Test Plan: CI
Reviewed By: SciPioneer
Differential Revision: D29837942
fbshipit-source-id: 1ae39648fc26aebd8aaef1a7ac0e03b598a8ed60
