### 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
ti = create_task_instance(
            dag_id='test_task_start_end_stats',
            end_date=DEFAULT_DATE + datetime.timedelta(days=10),
            state=State.RUNNING,
        )
        stats_mock.reset_mock()
        session = settings.Session()
        session.merge(ti)
        session.commit()
        ti._run_raw_task()
        ti.refresh_from_db()
        stats_mock.assert_called_with(f'ti.finish.{ti.dag_id}.{ti.task_id}.{ti.state}')
        assert call(f'ti.start.{ti.dag_id}.{ti.task_id}') in stats_mock.mock_calls
        assert stats_mock.call_count == 4
    def test_command_as_list(self, create_task_instance):
        ti = create_task_instance()
        ti.task.dag.fileloc = os.path.join(TEST_DAGS_FOLDER, 'x.py')
        assert ti.command_as_list() == [
            'airflow',
            'tasks',
            'run',
            ti.dag_id,
            ti.task_id,
            ti.run_id,
            '--subdir',
            'DAGS_FOLDER/x.py',
        ]
    def test_generate_command_default_param(self):