[Bug]: RuntimeWarning: coroutine 'AsyncMockMixin._execute_mock_call' was never awaited #229

tests/server/tasks/test_result_aggregator.py::TestResultAggregator::test_consume_and_break_on_auth_required_task_event
  /opt/hostedtoolcache/Python/3.10.17/x64/lib/python3.10/unittest/mock.py:2135: RuntimeWarning: coroutine 'AsyncMockMixin._execute_mock_call' was never awaited
  Coroutine created at (most recent call last)
    File "/opt/hostedtoolcache/Python/3.10.17/x64/lib/python3.10/asyncio/base_events.py", line 636, in run_until_complete
      self.run_forever()
    File "/opt/hostedtoolcache/Python/3.10.17/x64/lib/python3.10/asyncio/base_events.py", line 603, in run_forever
      self._run_once()
    File "/opt/hostedtoolcache/Python/3.10.17/x64/lib/python3.10/asyncio/base_events.py", line 1901, in _run_once
      handle._run()
    File "/opt/hostedtoolcache/Python/3.10.17/x64/lib/python3.10/asyncio/events.py", line 80, in _run
      self._context.run(self._callback, *self._args)
    File "/opt/hostedtoolcache/Python/3.10.17/x64/lib/python3.10/unittest/async_case.py", line [101](https://github.com/a2aproject/a2a-python/actions/runs/15824691005/job/44601789210#step:7:102), in _asyncioLoopRunner
      ret = await awaitable
    File "/opt/hostedtoolcache/Python/3.10.17/x64/lib/python3.10/unittest/mock.py", line 1396, in patched
      return await func(*newargs, **newkeywargs)
    File "/home/runner/work/a2a-python/a2a-python/tests/server/tasks/test_result_aggregator.py", line 310, in test_consume_and_break_on_auth_required_status_update_event
      ) = await self.aggregator.consume_and_break_on_interrupt(
    File "/home/runner/work/a2a-python/a2a-python/src/a2a/server/tasks/result_aggregator.py", line 134, in consume_and_break_on_interrupt
      asyncio.create_task(self._continue_consuming(event_stream))  # noqa: RUF006
    File "/opt/hostedtoolcache/Python/3.10.17/x64/lib/python3.10/unittest/mock.py", line [111](https://github.com/a2aproject/a2a-python/actions/runs/15824691005/job/44601789210#step:7:112)4, in __call__
      return self._mock_call(*args, **kwargs)
    File "/opt/hostedtoolcache/Python/3.10.17/x64/lib/python3.10/unittest/mock.py", line 1118, in _mock_call
      return self._execute_mock_call(*args, **kwargs)
    setattr(_type, entry, MagicProxy(entry, self))
  Enable tracemalloc to get traceback where the object was allocated.
  See https://docs.pytest.org/en/stable/how-to/capture-warnings.html#resource-warnings for more info.