Enable typechecking for torch.testing._internal.common_quantized.* (#44805)
Summary:
Addresses a subproblem of [Issue 42969](https://github.com/pytorch/pytorch/issues/42969)
Pull Request resolved: https://github.com/pytorch/pytorch/pull/44805
Reviewed By: malfet
Differential Revision: D23742754
Pulled By: janeyx99
fbshipit-source-id: e916a6a0c049cac318549a485d47f19363087d15
