Link to correct `as_mut` in docs for `pointer::as_ref` It previously linked to the unstable const-mut-cast method instead of the `mut` counterpart for `as_ref`. Closes #96327
Link to correct `as_mut` in docs for `pointer::as_ref` It previously linked to the unstable const-mut-cast method instead of the `mut` counterpart for `as_ref`. Closes #96327