Migrate metrics used in all examples from Datasets to Evaluate
The metrics are slowly leaving [Datasets](https://github.com/huggingface/datasets) (they are being deprecated as we speak) to move to the [Evaluate](https://github.com/huggingface/evaluate) library. We are looking for contributors to help us with the move.

Normally, the migration should be as easy as replacing the import of `load_metric` from Datasets to the `load` function in Evaluate. See a use in this [Accelerate example](https://github.com/huggingface/accelerate/blob/1486fa35b19abc788ddb609401118a601e68ff5d/examples/nlp_example.py#L104). To fix all tests, a dependency to evaluate will need to be added in the [requirements file](https://github.com/huggingface/transformers/blob/main/examples/pytorch/_tests_requirements.txt) (this is the link for PyTorch, there is another one for the Flax examples).

If you're interested in contributing, please reply to this issue with the examples you plan to move.
Hi, I would like to try to move Pytorch examples.<|||||>Please go ahead and make a PR when you're ready then @atturaioe. You can check our [contributing guide](https://github.com/huggingface/transformers/blob/main/CONTRIBUTING.md) to get started.<|||||>@sgugger  , I would like to work on the tensorflow examples. 


<|||||>Please go ahead @VijayKalmath :-)<|||||>@sgugger , I wanted to know if there are tests to run the examples in the tensorflow folder.<|||||>No tests for TensorFlow yet, we'll add those in the near future.<|||||>@sgugger , I don't think anyone is working on the flax examples. Will open a new PR for migrating the flax examples?<|||||>By all means, please go ahead! The only change will be that those are actually tested.<|||||>@sgugger, can I work on `research_projects` examples?<|||||>@atturaioe We don't update research projects to the new APIs as they use pinned versions of libraries. So this one should stay as is unless the author want to do a general update of them. Thanks for offering though!