[deps] Allow transformers <5.0.0 for Qwen3-VL

[rank-Yu]

This PR is for #580.

When installing with pip install -e ., the current constraint transformers<=4.57.0 does not support Qwen3-VL.

In addition, transformers==4.57.0 has been yanked from PyPI, which may cause installation issues depending on the resolver.

This PR relaxes the constraint to transformers<5.0.0, allowing newer versions of transformers that support Qwen3-VL.

[gemini-code-assist]

Summary of Changes

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This pull request resolves a dependency conflict that prevented the successful installation of Qwen3-VL. By broadening the acceptable version range for the transformers library, it ensures that users can install the necessary components without encountering version-related errors, thereby improving the overall compatibility and usability of the system.

Highlights

• Dependency Update: The transformers dependency version constraint has been updated to allow versions less than 5.0.0, specifically transformers>=4.54.0,<5.0.0.
• Qwen3-VL Compatibility: This change addresses an installation issue for Qwen3-VL, which was previously incompatible with the stricter transformers<=4.57.0 constraint.

Changelog

• requirements.txt
  • Updated the version constraint for the transformers package to allow versions up to, but not including, 5.0.0.

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[gemini-code-assist]

Code Review

This PR updates the transformers dependency version. While the change in requirements.txt is correct, I've identified a critical inconsistency with the project's Dockerfile. The Dockerfile uses a different, less restrictive version constraint for transformers, which could lead to future build failures or runtime issues. My review includes a recommendation to align these dependencies for better stability and maintainability.

_{Note: Security Review has been skipped due to the limited scope of the PR.}