### Apache Airflow version

2.1.2

### What happened

Task duration view for triggered dags shows all dag runs instead of n last. Changing the number of runs in the `Runs` drop-down menu doesn't change the view. Additionally the chart loads slowly, it show all dag runs.

![screenshot_2022-03-05_170203](https://user-images.githubusercontent.com/7863204/156891332-5e461661-970d-49bf-82a8-5dd1da57bb02.png)
 

### What you expected to happen

The number of shown dag runs is 25 (like for scheduled dags), and the last runs are shown. The number of runs button should allow to increase / decrease the number of shown dag runs (respectively the task times of the dag runs).

### How to reproduce

Trigger a dag multiple (> 25) times. Look at the "Task Duration" chart.

### Operating System

Linux

### Versions of Apache Airflow Providers

_No response_

### Deployment

Official Apache Airflow Helm Chart

### 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)

...
        dag = noop_pipeline()
        assert isinstance(dag, DAG)
        assert dag.dag_id == "test"
    def test_default_dag_id(self):
        """Test that @dag uses function name as default dag id."""
        @dag_decorator(default_args=self.DEFAULT_ARGS)
        def noop_pipeline():
            ...
        dag = noop_pipeline()
        assert isinstance(dag, DAG)
        assert dag.dag_id == "noop_pipeline"
    @pytest.mark.parametrize(
        argnames=["dag_doc_md", "expected_doc_md"],
        argvalues=[
            pytest.param("dag docs.", "dag docs.", id="use_dag_doc_md"),
            pytest.param(None, "Regular DAG documentation", id="use_dag_docstring"),
        ],
    )
    def test_documentation_added(self, dag_doc_md, expected_doc_md):
        """Test that @dag uses function docs as doc_md for DAG object if doc_md is not explicitly set."""
        @dag_decorator(default_args=self.DEFAULT_ARGS, doc_md=dag_doc_md)
        def noop_pipeline():
            """Regular DAG documentation"""
        dag = noop_pipeline()
        assert isinstance(dag, DAG)
        assert dag.dag_id == "noop_pipeline"
        assert dag.doc_md == expected_doc_md
    def test_documentation_template_rendered(self):