Fix compatibility with 1.12
# What does this PR do?

Fixes the scatter tests by installing torch_scatter wheels for PyTorch 1.12.
_The documentation is not available anymore as the PR was closed or merged._<|||||>We'll need a fix for all Wav2Vec2-like models it seems. Opened an issue here: https://github.com/pytorch/pytorch/issues/80569<|||||>This issue has been automatically marked as stale because it has not had recent activity. If you think this still needs to be addressed please comment on this thread.

Please note that issues that do not follow the [contributing guidelines](https://github.com/huggingface/transformers/blob/main/CONTRIBUTING.md) are likely to be ignored.<|||||>Should this be merged or closed @sgugger?<|||||>We're still not supporting PyTorch 1.12, so this shouldn't be closed.<|||||>Good news: we can go for `torch 1.12.1`. But FYI:

`https://pytorch-geometric.com/whl/torch-1.12.1+cpu.html` page doesn't exist, so I keep it as `1.12.0`