Task callback timeout should not apply when wrapping StreamTask with AsyncStreamTaskAdapter

When using the AsyncRunLoop (i.e., with "single.thread.mode" = false), StreamTasks are wrapped in AsyncStreamTaskAdapter. This means that the task.callback.timeout.ms configuration applies to these StreamTask too. This can cause confusion since the user isn't expecting any callbacks. The documentation for the task.callback.timeout.ms configuration is also unclear, and states that it only applies to AsyncStreamTask.

We should default the callback to Integer.MAX_VALUE when wrapping an StreamTask.