### Apache Airflow version

main (development)

### What happened

It seems [this](https://github.com/apache/airflow/commit/e16207409998b38b91c1f1697557d5c229ed32d1) commit has made the task instance execution date disappear from the task instance tooltip completely:
![image](https://github.com/apache/airflow/assets/18099224/62c9fec5-9e02-4319-93b9-197d25a8b027)
Note the missing `Run: <execution date>` between Task_id and Run_id.
I think there's a problem with the task instance execution date, because it's always `undefined`. In an older version of Airflow (2.4.3), I can see that the tooltip always shows the **current** datetime instead of the actual execution date, which is what the author of the commit identified in the first place I think.

### What you think should happen instead

The tooltip should properly show the task instance's execution date, not the current datetime (or nothing). There's a deeper problem here that causes `ti.execution_date` to be `undefined`.

### How to reproduce

Run the main branch of Airflow, with a simple DAG that finishes a run successfully. Go to the Graph view of a DAG and hover over any completed task with the mouse.

### Operating System

Ubuntu 22.04

### Versions of Apache Airflow Providers

_No response_

### Deployment

Virtualenv installation

### Deployment details

_No response_

### 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)

dag_warnings = session.scalars(select(DagWarning).where(DagWarning.dag_id == dag_id)).all()
    if dag_warnings:
        for dag_warning in dag_warnings:
            flash(dag_warning.message, "warning")
def get_sensitive_variables_fields():
    import warnings
    from airflow.utils.log.secrets_masker import get_sensitive_variables_fields
    warnings.warn(
        "This function is deprecated. Please use "
        "`airflow.utils.log.secrets_masker.get_sensitive_variables_fields`",
        RemovedInAirflow3Warning,
        stacklevel=2,
    )
    return get_sensitive_variables_fields()
def should_hide_value_for_key(key_name):
    import warnings
    from airflow.utils.log.secrets_masker import should_hide_value_for_key
    warnings.warn(
        "This function is deprecated. Please use "
        "`airflow.utils.log.secrets_masker.should_hide_value_for_key`",
        RemovedInAirflow3Warning,
        stacklevel=2,
    )
    return should_hide_value_for_key(key_name)
def get_params(**kwargs):
    """Return URL-encoded params."""
    return urlencode({d: v for d, v in kwargs.items() if v is not None}, True)
def generate_pages(