feat(cozeloop): add ADK agent support for tracing

- Add agent input/output parsing for cozeloop callback
- Support both run and resume modes for agent tracing
- Serialize agent events, actions, and interrupt info
- Set agent_name in span baggage for context propagation
- Handle async output parsing with goroutine for agent component
- Update eino to v0.8.0-alpha.14 and cozeloop-go to v0.1.20
- Add comprehensive unit tests for ADK integration~

Change-Id: Ic3120a9fb1f999ee8f708149416913c39bf1f53a

Author: shentongmartin