Higher order operator util for raising if inputs require grads (#106078)
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### <samp>🤖 Generated by Copilot at 08bd685</samp>
Added a utility function `autograd_not_implemented_check` to `torch._higher_order_ops.utils` and used it in `out_dtype_autograd` to simplify and standardize the error handling for higher order operators that do not support autograd.
Pull Request resolved: https://github.com/pytorch/pytorch/pull/106078
Approved by: https://github.com/zou3519
