[CI/Build] Check transformers v4.47

[DarkLight1337]

See if it's safe to update to transformers v4.47 by running our CI on the new version.

[github-actions]

👋 Hi! Thank you for contributing to the vLLM project.
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 can run other CI tests on top of those by going to your fastcheck build on Buildkite UI (linked in the PR checks section) and unblock them. If you do not have permission to unblock, ping simon-mo or khluu to add you in our Buildkite org.

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 do one of these:

• Add ready label to the PR
• Enable auto-merge.

🚀

[Isotr0py]

Seems that test_video.py for entrypoint test is failing in CI, let me run it locally to have a look...

[DarkLight1337]

I think it's just a timeout error from downloading the video.

[Isotr0py]

Oh, yea, just realized it's due to timeout. The entrypoint test CI log is too long to read. 😅

[Isotr0py]

LGTM since the failing entrypoint test passed on my side.

BTW, we need to address the failling mamba test in a following PR as well.