Update huggingface_hub dependency version

[dameikle]

This pull request updates the dependency version for huggingface_hub in the pyproject.toml file. The minimum required version has been increased to ensure compatibility with newer features or fixes.

Dependency update:

• pyproject.toml: Updated the huggingface_hub dependency under hf-inference-endpoints from >= 0.22.0 to >= 0.31.0.