lighteval

16c26303 - adds `enable_prefix_caching` option to VLLMModelConfig (#945)

adds `enable_prefix_caching` option to VLLMModelConfig (#945) * add enable_prefix_caching in VLLMModel * typo * None default value --------- Co-authored-by: Nathan Habib <30601243+NathanHB@users.noreply.github.com>