[utils] torch.cpu didn't exist in pt-1.9
PR https://github.com/huggingface/transformers/pull/17138 introduced another issue: `torch.cpu` didn't exist till pt-1.10
Thank you @stas00!<|||||>_The documentation is not available anymore as the PR was closed or merged._<|||||>the CI errors seem to be related to network failure, so ignoring these and merging.