**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**



airflow/models/dag.py
while graph_unsorted:
            
            
            
            
            
            
            
            
            
            
            
            
            acyclic = False
            for node in list(graph_unsorted.values()):
                for edge in node.upstream_list:
                    if edge.task_id in graph_unsorted:
                        break
                
                else:
                    acyclic = True
                    del graph_unsorted[node.task_id]
                    graph_sorted.append(node)
                    if include_subdag_tasks and isinstance(node, SubDagOperator):
                        graph_sorted.extend(node.subdag.topological_sort(include_subdag_tasks=True))
            if not acyclic:
                raise AirflowException(f"A cyclic dependency occurred in dag: {self.dag_id}")
        return tuple(graph_sorted)
    @provide_session
    def set_dag_runs_state(