### 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)

"""Base View to set Airflow related properties"""
    from airflow import macros
    route_base = ""
    extra_args = {
        
        "macros": macros,
        "get_docs_url": get_docs_url,
    }
    if not conf.getboolean("core", "unit_test_mode"):
        extra_args["sqlite_warning"] = settings.engine.dialect.name == "sqlite"
        extra_args["sequential_executor_warning"] = conf.get("core", "executor") == "SequentialExecutor"
    line_chart_attr = {
        "legend.maxKeyLength": 200,
    }
    def render_template(self, *args, **kwargs):
        
        if TriggererJob.is_needed():
            kwargs["triggerer_job"] = lazy_object_proxy.Proxy(TriggererJob.most_recent_job)
        return super().render_template(
            *args,
            
            scheduler_job=lazy_object_proxy.Proxy(SchedulerJob.most_recent_job),
            **kwargs,
        )
class Airflow(AirflowBaseView):
    """Main Airflow application."""
    @expose("/health")
    def health(self):