[Bugfix] Reject sampling params unsupported by diffusion models#45418

Isotr0py merged 10 commits into

vllm-project:mainvllm-project/vllm:mainfrom

guan404ming:fix/diffusion-gemma-sampling-param-warningsguan404ming/vllm:fix/diffusion-gemma-sampling-param-warningsCopy head branch name to clipboard