[TPU][Bugfix] Fixes prompt_token_ids error in tpu tests.

[patemotter]

Fixes errors related to prompt_token_ids not being a parameter in LLM.generate() impacting TPU-related tests.

Purpose

Fix CI/CD for TPU.

Test Plan

Tested on failed TPU test scripts (bash .buildkite/scripts/hardware_ci/run-tpu-v1-test.sh)

Test Result

Successful.

(Optional) Documentation Update

---

Essential Elements of an Effective PR Description Checklist

• The purpose of the PR, such as "Fix some issue (link existing issues this PR will resolve)".
• The test plan, such as providing test command.
• The test results, such as pasting the results comparison before and after, or e2e results
• (Optional) The necessary documentation update, such as updating supported_models.md and examples for a new model.

[github-actions]

👋 Hi! Thank you for contributing to the vLLM project.

💬 Join our developer Slack at https://slack.vllm.ai to discuss your PR in #pr-reviews, coordinate on features in #feat- channels, or join special interest groups in #sig- channels.

Just a reminder: PRs would not trigger full CI run by default. Instead, it would only run fastcheck CI which starts running only a small and essential subset of CI tests to quickly catch errors.

You ask your reviewers to trigger select CI tests on top of fastcheck CI.

Once the PR is approved and ready to go, your PR reviewer(s) can run CI to test the changes comprehensively before merging.

To run CI, PR reviewers can either: Add ready label to the PR or enable auto-merge.

If you have any questions, please reach out to us on Slack at https://slack.vllm.ai.

🚀

[gemini-code-assist]

Code Review

This pull request resolves a CI/CD failure on TPU by pinning the lm-eval dependency to a specific git commit containing a necessary fix. The change is appropriate for unblocking the CI. My review includes a suggestion to add a TODO comment to both modified scripts. This will serve as a reminder to revert to a stable, released version of the package once the fix is available on PyPI, which is important for long-term maintainability and security.

[yaochengji]

LGTM!