[Misc] Upgrade transformers to 4.49

[ywang96]

This PR upgrades the version of transformers to 4.49 for out-of-box support of Qwen2.5-VL

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[ywang96]

pytest tests/models/decoder_only/vision_language/test_models.py -k qwen2_5_vl passed locally on H100, so I'm marking this PR as ready for review.

[DarkLight1337]

We need to update requirements-test* as well

[WoosukKwon]

IIRC, multiple people reported that the fast processor does not match the original one. Did we consider this issue?

[ywang96]

IIRC, multiple people reported that the fast processor does not match the original one. Did we consider this issue?

@WoosukKwon Yea I tried to see if the numerical differences would lead to actual differences in the result, but it looks like that's not the case since the tests all passed (with different image size factors). I'm also okay with us not including use_fast in this PR.

[WoosukKwon]

@ywang96 Got it. I'd personally prefer to not use it until we are certain about the correctness.

[ywang96]

@ywang96 Got it. I'd personally prefer to not use it until we are certain about the correctness.

Sounds good - I'll revert the change

[hmellor]

Since #13617 we no longer need to manually update requirements-test.txt, pre-commit should have us covered.

[hmellor]

In a separate PR which also updates transformers I'm seeing some ImportError: cannot import name 'LogitsWarper' from 'transformers.generation.logits_process' errors in CI https://buildkite.com/vllm/ci/builds/13915#01952838-c668-4156-9ac4-d0ce260584d1 originating from lm-format-enforcer.

It'd be good to check if this happens here too.

[ywang96]

In a separate PR which also updates transformers I'm seeing some ImportError: cannot import name 'LogitsWarper' from 'transformers.generation.logits_process' errors in CI https://buildkite.com/vllm/ci/builds/13915#01952838-c668-4156-9ac4-d0ce260584d1 originating from lm-format-enforcer.

It'd be good to check if this happens here too.

@hmellor Thanks for the heads up!

[DarkLight1337]

Rebuilding