fix(models): forward sampling params and populate finish_reason in AnthropicLlm#5441

SuperMarioYL wants to merge 1 commit intogoogle:maingoogle/adk-python:mainfrom

SuperMarioYL:fix/anthropic-llm-sampling-params-finish-reasonSuperMarioYL/adk-python:fix/anthropic-llm-sampling-params-finish-reasonCopy head branch name to clipboard