fix: return updated extended card in JsonRpcTransport.get_card()#606

chaturvedakashamarendra wants to merge 1 commit intoa2aproject:maina2aproject/a2a-python:mainfrom

chaturvedakashamarendra:fix/get-card-return-value-bugchaturvedakashamarendra/a2a-python:fix/get-card-return-value-bugCopy head branch name to clipboard