### Apache Airflow version

Other Airflow 2 version (please specify below)

### What happened

Greetings!
Recently I’ve faced a problem. It seems that assigning object, which can’t be serialized to JSON, to the dag_run.conf dict cause critical errors with UI.
After executing code example in "How to reproduce": 
Grid representation of the DAG breaks with following result:
<img width="800" alt="Pasted Graphic" src="https://github.com/apache/airflow/assets/79107237/872ccde5-500f-4484-a36c-dce6b7112286">
Browse -> DAG Runs also becomes unavailable.
<img width="800" alt="Pasted Graphic 1" src="https://github.com/apache/airflow/assets/79107237/b4e3df0c-5324-41dd-96f3-032e706ab7a9">
Dag itself continues to work correctly, this affects only UI graph and dagrun/list/
I suggest to use custom dictionary with restriction on setting non json values.

### What you think should happen instead

Raise an error

### How to reproduce

Execute following task. 
Composer 2 version 2.4.2
Airflow version 2.5.3
```
@task 
def test_task(**context):
    context['dag_run'].conf["test"] = np.int64(1234)
```

### Operating System

Ubuntu 20.04.6 LTS

### Versions of Apache Airflow Providers

_No response_

### Deployment

Google Cloud Composer

### Deployment details

_No response_

### Anything else

_No response_

### Are you willing to submit PR?

- [X] 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)

print(repr(args))
        PythonOperator.partial(
            task_id="consumer",
            trigger_rule=trigger_rule,
            python_callable=consumer,
        ).expand(op_args=make_list())
    dr = dag_maker.create_dagrun()
    _, make_list_ti = sorted(dr.task_instances, key=lambda ti: ti.task_id)
    make_list_ti.state = TaskInstanceState.FAILED
    session.flush()
    tis, _ = dr.update_state(execute_callbacks=False, session=session)
    assert tis == []
    tis = sorted(dr.task_instances, key=lambda ti: ti.task_id)
    assert sorted((ti.task_id, ti.map_index, ti.state) for ti in tis) == [
        ("consumer", -1, TaskInstanceState.UPSTREAM_FAILED),
        ("make_list", -1, TaskInstanceState.FAILED),
    ]
    
    
    tis, _ = dr.update_state(execute_callbacks=False, session=session)
    assert tis == []
    assert dr.state == DagRunState.FAILED
def test_mapped_task_all_finish_before_downstream(dag_maker, session):
    result = None
    with dag_maker(session=session) as dag:
        @dag.task
        def make_list():
            return [1, 2]
        @dag.task
        def double(value):