### 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)

self,
        dag_id: str,
        tasks: Iterator[dict[str, Any]] | Iterator[TI],
        created_counts: dict[str, int],
        hook_is_noop: bool,
        *,
        session: Session,
    ) -> None:
        """
        Create the necessary task instances from the given tasks.
        :param dag_id: DAG ID associated with the dagrun
        :param tasks: the tasks to create the task instances from
        :param created_counts: a dictionary of number of tasks -> total ti created by the task creator
        :param hook_is_noop: whether the task_instance_mutation_hook is noop
        :param session: the session to use
        """
        
        
        
        run_id = self.run_id
        try:
            if hook_is_noop:
                session.bulk_insert_mappings(TI, tasks)
            else:
                session.bulk_save_objects(tasks)
            for task_type, count in created_counts.items():
                Stats.incr(f"task_instance_created_{task_type}", count, tags=self.stats_tags)