### 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
self,
        trigger_rule: str,
        successes: int,
        skipped: int,
        failed: int,
        upstream_failed: int,
        done: int,
        flag_upstream_failed: bool,
        expect_state: State,
        expect_completed: bool,
        dag_maker,
    ):
        with dag_maker() as dag:
            downstream = DummyOperator(task_id="downstream", trigger_rule=trigger_rule)
            for i in range(5):
                task = DummyOperator(task_id=f'runme_{i}', dag=dag)
                task.set_downstream(downstream)
        run_date = task.start_date + datetime.timedelta(days=5)
        ti = dag_maker.create_dagrun(execution_date=run_date).get_task_instance(downstream.task_id)
        ti.task = downstream
        dep_results = TriggerRuleDep()._evaluate_trigger_rule(
            ti=ti,
            successes=successes,
            skipped=skipped,
            failed=failed,
            upstream_failed=upstream_failed,