deferred / deferrable task are not take in account by max_active_tasks

### Apache Airflow version 2.9.2 ### What happened? If you set max_active_tasks, it do not limit the number of concurrent deferred tasks. It's possible to restrict the number of concurrent deferred tasks with a pool but I want limit the number of tasks run by a dag and keep the possibility for every task to use a specific pool ( we can only use 1 pool by task in airflow ) ### What you think should happen instead? max_active_tasks should take in account the deferred task or we should create a new boolean setting `max_active_tasks_include_deferred` like what was done for the pools ### How to reproduce ```python from datetime import datetime, timezone, timedelta from airflow.sensors.time_sensor import TimeSensorAsync from pendulum import today from airflow import DAG with DAG( dag_id='example', schedule_interval='0 0 * * *', max_active_tasks=10, start_date=today("UTC").add(days=-1)): for i in range(100): TimeSensorAsync(task_id=f"a_{i}", target_time=(datetime.now(tz=timezone.utc) + timedelta(minutes=10)).time()) ``` ### Are you willing to submit PR? - [ ] Yes I am willing to submit a PR! ### Code of Conduct - [X] I agree to follow this project's [Code of Conduct](https://github.com/apache/airflow/blob/main/CODE_OF_CONDUCT.md)