### 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
with dag_maker(dag_id='test_failure_email'):
            task = BashOperator(
                task_id='test_email_alert_with_config',
                bash_command='exit 1',
                email='to',
            )
        ti = dag_maker.create_dagrun(execution_date=timezone.utcnow()).task_instances[0]
        ti.task = task
        opener = mock_open(read_data='template: {{ti.task_id}}')
        with patch('airflow.models.taskinstance.open', opener, create=True):
            try:
                ti.run()
            except AirflowException:
                pass
        (email, title, body), _ = mock_send_email.call_args
        assert email == 'to'
        assert 'template: test_email_alert_with_config' == title
        assert 'template: test_email_alert_with_config' == body
    def test_set_duration(self):
        task = DummyOperator(task_id='op', email='test@test.test')
        ti = TI(task=task)
        ti.start_date = datetime.datetime(2018, 10, 1, 1)
        ti.end_date = datetime.datetime(2018, 10, 1, 2)
        ti.set_duration()
        assert ti.duration == 3600
    def test_set_duration_empty_dates(self):