Python: fix: filter non-assistant messages from AgentResponse in WorkflowAgent#4275

LEDazzio01 wants to merge 5 commits intomicrosoft:mainmicrosoft/agent-framework:mainfrom

LEDazzio01:fix/4261-workflow-agent-user-input-reemissionLEDazzio01/agent-framework:fix/4261-workflow-agent-user-input-reemissionCopy head branch name to clipboard