Change signature of `cleanup_stuck_queued_tasks` to return TIs or TI Keys

### Body

This has gotten to an awkward place where we are checking that `repr(ti)` is in the list of "readable versions of ti"

There's no guarantee that the executor will use `repr` and, just why not use the TI object.

Here's the relevant bit of code
https://github.com/apache/airflow/blob/main/airflow/jobs/scheduler_job_runner.py#L1572-L1580

Reproduced here for convenience:

```python
cleaned_up_task_instances = set(executor.cleanup_stuck_queued_tasks(tis=stuck_tis))
for ti in stuck_tis:
if repr(ti) in cleaned_up_task_instances:
self._task_context_logger.warning(
"Marking task instance %s stuck in queued as failed. "
"If the task instance has available retries, it will be retried.",
ti,
ti=ti,
)
```

Should be something like this instead:

```python
for ti in executor.cleanup_stuck_queued_tasks(tis=stuck_tis):
self._task_context_logger.warning(
"Marking task instance %s stuck in queued as failed. "
"If the task instance has available retries, it will be retried.",
ti,
ti=ti,
)
```

But it will take some effort to figure out how to evolve the executor interface (deprecation warning, updating providers, etc)

I suppose this is a cost of having executor be a public interface.

just fyisies @o-nikolas @potiuk @pankajastro @sunank200 @vincbeck

### Committer

- [X] I acknowledge that I am a maintainer/committer of the Apache Airflow project.