### What do you see as an issue?

The [/dags/{dag_id}/details](https://airflow.apache.org/docs/apache-airflow/stable/stable-rest-api-ref.html#operation/post_set_task_instances_state) endpoint of the REST API does not return all of the keys that are listed in the documentation. If I run `curl -X GET localhost:8080/api/v1/dags/{my_dag}/details`, then compare the results with the results in the documentation, you can see the following missing keys:

```python
>>> for key in docs.keys():
...     if not key in actual.keys():
...             print(key)
...
root_dag_id
last_parsed_time
last_pickled
last_expired
scheduler_lock
timetable_description
has_task_concurrency_limits
has_import_errors
next_dagrun
next_dagrun_data_interval_start
next_dagrun_data_interval_end
next_dagrun_create_after
template_search_path
```

### Solving the problem

Either remove these keys from the documentation or fix the API endpoint

### Anything else

_No response_

### 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)

"""
        Triggers the callbacks with the given context.
        :param callbacks: List of callbacks to call
        :param context: Context to pass to all callbacks
        :param dag_id: The dag_id of the DAG to find.
        """
        if callbacks and context:
            for callback in callbacks:
                cls.logger().info("Executing dag callback function: %s", callback)
                try:
                    callback(context)
                except Exception:
                    cls.logger().exception("failed to invoke dag state update callback")
                    Stats.incr("dag.callback_exceptions", tags={"dag_id": dag_id})
    def get_active_runs(self):
        """
        Return a list of dag run execution dates currently running.
        :return: List of execution dates
        """
        runs = DagRun.find(dag_id=self.dag_id, state=DagRunState.RUNNING)
        active_dates = []
        for run in runs:
            active_dates.append(run.execution_date)
        return active_dates
    @provide_session
    def get_num_active_runs(self, external_trigger=None, only_running=True, session=NEW_SESSION):