### 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)

[
        pytest.param(
            "/",
            [
                "/delete?dag_id=example_bash_operator",
                "return confirmDeleteDag(this, 'example_bash_operator')",
            ],
            id="delete-dag-button-normal",
        ),
        pytest.param(
            f"task?task_id=runme_0&dag_id=example_bash_operator&execution_date={DEFAULT_VAL}",
            ["Task Instance Details"],
            id="task",
        ),
        pytest.param(
            f"xcom?task_id=runme_0&dag_id=example_bash_operator&execution_date={DEFAULT_VAL}",
            ["XCom"],
            id="xcom",
        ),
        pytest.param("xcom/list", ["List XComs"], id="xcom-list"),
        pytest.param(
            f"rendered-templates?task_id=runme_0&dag_id=example_bash_operator&execution_date={DEFAULT_VAL}",
            ["Rendered Template"],
            id="rendered-templates",
        ),
        pytest.param(
            "dag_details?dag_id=example_bash_operator",
            ["DAG Details"],
            id="dag-details-url-param",
        ),