### Description

expanding tasks in batches to allow mapped tasks spawn more than 1024 processes.

### Use case/motivation

Maximum length of a list is limited to 1024 by `max_map_length (AIRFLOW__CORE__MAX_MAP_LENGTH)`.
during scheduling of the new tasks, an UPDATE query is ran that tries to set all the new tasks at once.  Increasing `max_map_length` more than 4K makes airflow scheduler completely unresponsive.

Also, Postgres throws `stack depth limit exceeded` error which can be fixed by updating to a newer version and setting `max_stack_depth` higher. But it doesn't really matter because airflow scheduler freezes up.
 
As a workaround, I split the dag runs into subdag runs which works but it would be much nicer if we didn't have to worry about exceeding  `max_map_length`. 

### Related issues

It was discussed here:
[Increasing 'max_map_length' leads to SQL 'max_stack_depth' error with 5000 dags to be spawned #28478](https://github.com/apache/airflow/discussions/28478)

### Are you willing to submit a PR?

- [ ] 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)

self,
        created_counts: dict[str, int],
        ti_mutation_hook: Callable,
        hook_is_noop: Literal[True, False],
    ) -> Callable[[Operator, Iterable[int]], Iterator[dict[str, Any]] | Iterator[TI]]:
        """
        Get the task creator function.
        This function also updates the created_counts dictionary with the number of tasks created.
        :param created_counts: Dictionary of task_type -> count of created TIs
        :param ti_mutation_hook: task_instance_mutation_hook function
        :param hook_is_noop: Whether the task_instance_mutation_hook is a noop
        """
        if hook_is_noop:
            def create_ti_mapping(task: Operator, indexes: Iterable[int]) -> Iterator[dict[str, Any]]:
                created_counts[task.task_type] += 1
                for map_index in indexes:
                    yield TI.insert_mapping(self.run_id, task, map_index=map_index)
            creator = create_ti_mapping
        else:
            def create_ti(task: Operator, indexes: Iterable[int]) -> Iterator[TI]:
                for map_index in indexes:
                    ti = TI(task, run_id=self.run_id, map_index=map_index)
                    ti_mutation_hook(ti)
                    created_counts[ti.operator] += 1
                    yield ti
            creator = create_ti
        return creator
    def _create_tasks(