### Apache Airflow version

2.4.2

### What happened

Create a DAG and set the schedule parameter using a CronTriggerTimeTable instance. Enable the DAG so that there is DAG run data. Try to access the Calendar View for the DAG. An ERR_EMPTY_RESPONSE error is displayed instead of the page.

The Calendar View is accessible for other DAGs  that are using the schedule_interval set to a cron string instead.

### What you think should happen instead

The Calendar View should have been displayed.

### How to reproduce

Create a DAG and set the schedule parameter to a CronTriggerTimeTable instance. Enable the DAG and allow some DAG runs to occur. Try to access the Calender View for the DAG.

### Operating System

Red Hat Enterprise Linux 8.6

### Versions of Apache Airflow Providers

_No response_

### Deployment

Virtualenv installation

### Deployment details

Airflow 2.4.2 installed via pip with Python3.9 to venv using constraints.

### 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)

class SlaMissModelView(AirflowModelView):
    """View to show SlaMiss table"""
    route_base = "/slamiss"
    datamodel = AirflowModelView.CustomSQLAInterface(SlaMiss)  
    class_permission_name = permissions.RESOURCE_SLA_MISS
    method_permission_name = {
        "list": "read",
    }
    base_permissions = [
        permissions.ACTION_CAN_READ,
        permissions.ACTION_CAN_ACCESS_MENU,
    ]
    list_columns = ["dag_id", "task_id", "execution_date", "email_sent", "notification_sent", "timestamp"]
    label_columns = {
        "execution_date": "Logical Date",
    }
    add_columns = ["dag_id", "task_id", "execution_date", "email_sent", "notification_sent", "timestamp"]
    edit_columns = ["dag_id", "task_id", "execution_date", "email_sent", "notification_sent", "timestamp"]
    search_columns = ["dag_id", "task_id", "email_sent", "notification_sent", "timestamp", "execution_date"]
    base_order = ("execution_date", "desc")
    base_filters = [["dag_id", DagFilter, lambda: []]]
    formatters_columns = {
        "task_id": wwwutils.task_instance_link,
        "execution_date": wwwutils.datetime_f("execution_date"),
        "timestamp": wwwutils.datetime_f("timestamp"),
        "dag_id": wwwutils.dag_link,
        "map_index": wwwutils.format_map_index,
    }
    @action("muldelete", "Delete", "Are you sure you want to delete selected records?", single=False)
    def action_muldelete(self, items):