**Description**

I have noticed that the stable REST API doesn't have the ability to run a task (which is possible from the airflow web interface.
I think it would be nice to have either:
- Run task 
- Run all failing tasks (rerun from point of failure)
this ability for integrations.

**Use case / motivation**

I would like the ability to identify the failing tasks on a specific DAG Run and rerun only them.
I would like to do it remotely (non-interactive) using the REST API.
I could write a script that run only the failing tasks, but I couldn't find a way to "Run" a task, when I have the task instance ID.

**Are you willing to submit a PR?**

Not at this stage

**Related Issues**



tests/api_connexion/endpoints/test_task_instance_endpoint.py
(
                "task_instance properties",
                [
                    {"task": "test_1"},
                    {"task": "test_2"},
                ],
                True,
                {"dag_ids": ["latest_only"]},
                2,
            ),
        ],
    )
    @provide_session
    def test_should_respond_200_when_task_instance_properties_are_none(
        self, _, task_instances, single_dag_run, payload, expected_ti_count, session
    ):
        self.ti_extras.update(
            {
                "start_date": None,
                "end_date": None,
                "state": None,
            }
        )
        self.create_task_instances(
            session,
            dag_id="latest_only",
            task_instances=task_instances,
            single_dag_run=single_dag_run,
        )
        response = self.client.post(