### Apache Airflow version

main (development)

### Operating System

macOS 11.5.2

### Versions of Apache Airflow Providers

_No response_

### Deployment

Virtualenv installation

### Deployment details

_No response_

### What happened

If your first try fails and you have retries enabled, the subsequent tries skip right to the final `next_method(**next_kwargs)` instead of starting with `execute` again.

### What you expected to happen

Like we reset things like start date, we should wipe `next_method` and `next_kwargs` so we can retry the task from the beginning.

### How to reproduce

_No response_

### Anything else

_No response_

### Are you willing to submit PR?

- [X] 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)

tests/models/test_taskinstance.py
try:
                ti.run()
            except AirflowException:
                pass
        ti = dag_maker.create_dagrun(execution_date=timezone.utcnow()).task_instances[0]
        ti.task = task
        assert ti.try_number == 1
        
        run_with_error(ti)
        assert ti.state == State.UP_FOR_RETRY
        assert ti._try_number == 1
        assert ti.try_number == 2
        
        run_with_error(ti)
        assert ti.state == State.FAILED
        assert ti._try_number == 2
        assert ti.try_number == 3
        
        
        dag.clear()
        
        run_with_error(ti)
        assert ti.state == State.UP_FOR_RETRY
        assert ti._try_number == 3
        assert ti.try_number == 4
        
        run_with_error(ti)