Moved labels to enable parallelism pipeline in Luke model
# What does this PR do?
Fixes #22561 

## Before submitting
- [ ] This PR fixes a typo or improves the docs (you can dismiss the other checks if that's the case).
- [X] Did you read the [contributor guideline](https://github.com/huggingface/transformers/blob/main/CONTRIBUTING.md#start-contributing-pull-requests),
      Pull Request section?
- [ ] Was this discussed/approved via a Github issue or the [forum](https://discuss.huggingface.co/)? Please add a link
      to it if that's the case.
- [ ] Did you make sure to update the documentation with your changes? Here are the
      [documentation guidelines](https://github.com/huggingface/transformers/tree/main/docs), and
      [here are tips on formatting docstrings](https://github.com/huggingface/transformers/tree/main/docs#writing-source-documentation).
- [ ] Did you write any new necessary tests?


## Who can review?

Please let me know if there's anything I need to correct! Thanks

@sgugger 


The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/transformers/pr_22907). All of your documentation changes will be reflected on that endpoint.<|||||>@katiele47  - thanks for the PR! 

Apologies, I reviewed another PR implementing the changes for Luke quickly this morning without properly reading the issue and realising this PR was also open. As the PR #22909 notes, there was just a small change that needed to happen on L2232, updating `logits` -> `reshaped_logits`. Otherwise the PR all looked good and after updating would have been merged :) 

I'm sorry for my mistake - I hope this doesn't discourage you from contributing and we welcome any PRs that you'd like to open in the future. 

@sushmanthreddy Anyone in the community is able to review PRs. If you spot something in the code that needs updating, could you comment directly on the PR instead of opening another one? <|||||>@amyeroberts . I don't see, where I have gone wrong. I am new to open source and actually have worked on this issue before the @katiele47 did, but I haven't just mentioned a reviewer to review.
this is the proof for that [link](https://github.com/huggingface/transformers/pull/22900/files), actually, I have made the same changes needed just due to branch conflicts that haven't kept the proper pr.
anyways sorry for that if my mistake is there, I hope u understand <|||||>Hi @amyeroberts thanks for spotting the small change and no worries! Now that it has been fixed by @sushmanthreddy PR #22909 should I close this PR? <|||||>@katiele47 Yes, this PR can now be closed. Thanks again for opening - we look forward to future contributions!

@sushmanthreddy You haven't made a mistake, don't worry :) It's just a request to make it easier for maintainers to keep track of issues and PRs in the codebase. 