### 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)

dag_id = "example_bash_operator"
    test_dag_id = "non_existent_dag"
    with create_session() as session:
        dag_query = session.query(DagModel).filter(DagModel.dag_id == dag_id)
        dag_query.first().tags = []  
    with create_session() as session:
        dag_query.update({"dag_id": test_dag_id})
    yield test_dag_id
    with create_session() as session:
        session.query(DagModel).filter(DagModel.dag_id == test_dag_id).update({"dag_id": dag_id})
def test_delete_dag_button_for_dag_on_scheduler_only(admin_client, new_id_example_bash_operator):
    
    
    
    test_dag_id = new_id_example_bash_operator
    resp = admin_client.get("/", follow_redirects=True)
    check_content_in_response(f"/delete?dag_id={test_dag_id}", resp)
    check_content_in_response(f"return confirmDeleteDag(this, '{test_dag_id}')", resp)
@pytest.fixture()
def new_dag_to_delete():