### Apache Airflow version

2.5.1

### What happened

/calendar page give a problem, here is the capture



![屏幕截图 2023-01-30 093116](https://user-images.githubusercontent.com/19165258/215369479-9fc7de5c-f190-460c-9cf7-9ab27d8ac355.png)


### What you think should happen instead

_No response_

### How to reproduce

_No response_

### Operating System

Ubuntu 22.04.1 LTS

### Versions of Apache Airflow Providers

Distributor ID: Ubuntu
Description:    Ubuntu 22.04.1 LTS
Release:        22.04
Codename:       jammy

### Deployment

Other

### Deployment details


Distributor ID: Ubuntu
Description:    Ubuntu 22.04.1 LTS
Release:        22.04
Codename:       jammy

### 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)

"airflow/grid.html",
            root=root,
            dag=dag,
            doc_md=doc_md,
            num_runs=num_runs,
            show_external_log_redirect=task_log_reader.supports_external_link,
            external_log_name=external_log_name,
            dag_model=dag_model,
            auto_refresh_interval=conf.getint("webserver", "auto_refresh_interval"),
            default_dag_run_display_number=default_dag_run_display_number,
            default_wrap=conf.getboolean("webserver", "default_wrap"),
            filters_drop_down_values=htmlsafe_json_dumps(
                {
                    "taskStates": [state.value for state in TaskInstanceState],
                    "dagStates": [state.value for state in State.dag_states],
                    "runTypes": [run_type.value for run_type in DagRunType],
                    "numRuns": num_runs_options,
                }
            ),
        )
    @expose("/calendar")
    @auth.has_access(
        [
            (permissions.ACTION_CAN_READ, permissions.RESOURCE_DAG),
            (permissions.ACTION_CAN_READ, permissions.RESOURCE_TASK_INSTANCE),
        ]
    )
    @gzipped
    @action_logging
    def legacy_calendar(self):