improvement: rewrite ADK adapter to use Portkey Responses API#421

viraj-s15 wants to merge 3 commits intoPortkey-AI:mainPortkey-AI/portkey-python-sdk:mainfrom

viraj-s15:feature/adk-responses-endpointviraj-s15/portkey-python-sdk:feature/adk-responses-endpointCopy head branch name to clipboard