This commit adds async versions of A2A functions to support calling from
async contexts without creating new event loops.
Changes:
- Add afetch_agent_card() async function in utils.py
- Add aexecute_a2a_delegation() async function in utils.py
- Add async helper functions in wrapper.py:
- _afetch_card_from_config()
- _afetch_agent_cards_concurrently()
- _aexecute_task_with_a2a()
- _ahandle_agent_response_and_continue()
- _adelegate_to_a2a()
- Update wrap_agent_with_a2a_instance() to wrap both execute_task and
aexecute_task methods
- Add comprehensive tests for async A2A execution
Fixes#4162
Co-Authored-By: João <joao@crewai.com>
4f0b6f6427