Scheduler crash in Airflow 2.10.5 due to TypeError in _get_ready_tis

### Apache Airflow version Other Airflow 2 version (please specify below) ### If "Other Airflow 2 version" selected, which one? 2.10.5 ### What happened? I'm encountering an issue with Apache Airflow 2.10.5 where the scheduler crashes with a TypeError. This issue happens when it detects a zombie task and tries to process it. The scheduler logs and stack trace indicate that the error occurred due to a NoneType value for end_date in the next_retry_datetime method of TaskInstance. Here are the relevant logs and traceback: > [2025-06-12T01:43:19.317+0800] {scheduler_job_runner.py:2110} ERROR - Detected zombie job: {'full_filepath': '/data/airflow/dags/analysis_hourly.py', 'processor_subdir': '/data/airflow/dags', 'msg': "{'DAG Id': 'analysis_hourly', 'Task Id': 'analysis_hourly.tableau-235976', 'Run Id': 'scheduled__2025-06-11T16:00:00+00:00', 'Hostname': 'centos-hadoop3dn-480896.intsig.internal', 'External Executor Id': '52b249a2-d690-4713-a3b3-1b2e8d72305b'}", 'simple_task_instance': SimpleTaskInstance(dag_id='analysis_hourly', task_id='analysis_hourly.tableau-235976', run_id='scheduled__2025-06-11T16:00:00+00:00', map_index=-1, start_date=datetime.datetime(2025, 6, 11, 17, 34, 33, 41895, tzinfo=Timezone('UTC')), end_date=None, try_number=1, state='running', executor=None, executor_config={}, run_as_user=None, pool='default_pool', priority_weight=2, queue='worker_03', key=TaskInstanceKey(dag_id='analysis_hourly', task_id='analysis_hourly.tableau-235976', run_id='scheduled__2025-06-11T16:00:00+00:00', try_number=1, map_index=-1)), 'task_callback_type': None} Full traceback: > File "/data/miniconda/envs/py311/lib/python3.11/site-packages/airflow/models/taskinstance.py", line 2601, in are_dependencies_met for dep_status in self.get_failed_dep_statuses(dep_context=dep_context, session=session): File "/data/miniconda/envs/py311/lib/python3.11/site-packages/airflow/models/taskinstance.py", line 2625, in get_failed_dep_statuses for dep_status in dep.get_dep_sta…