The workers fail with `mongoengine.errors.FieldDoesNotExist: The fields "{'force'}" do not exist on the document "Job"`
```
INFO: 2023-05-13 10:50:18,007 - root - Worker loop started
INFO: 2023-05-13 10:50:18,023 - root - Starting heartbeat.
ERROR: 2023-05-13 10:50:18,115 - asyncio - Task exception was never retrieved
future: <Task finished name='Task-2' coro=<every() done, defined at /src/services/worker/src/worker/executor.py:26> exception=FieldDoesNotExist('The fields "{\'force\'}" do not exist on the document "Job"')>
Traceback (most recent call last):
  File "/src/services/worker/src/worker/executor.py", line 30, in every
    out = func(*args, **kwargs)
  File "/src/services/worker/src/worker/executor.py", line 117, in kill_zombies
    zombies = queue.get_zombies(max_seconds_without_heartbeat=self.max_seconds_without_heartbeat_for_zombies)
  File "/src/libs/libcommon/src/libcommon/queue.py", line 622, in get_zombies
    zombies = [
  File "/src/libs/libcommon/src/libcommon/queue.py", line 622, in <listcomp>
    zombies = [
  File "/src/services/worker/.venv/lib/python3.9/site-packages/mongoengine/queryset/queryset.py", line 110, in _iter_results
    self._populate_cache()
  File "/src/services/worker/.venv/lib/python3.9/site-packages/mongoengine/queryset/queryset.py", line 129, in _populate_cache
    self._result_cache.append(next(self))
  File "/src/services/worker/.venv/lib/python3.9/site-packages/mongoengine/queryset/base.py", line 1599, in __next__
    doc = self._document._from_son(
  File "/src/services/worker/.venv/lib/python3.9/site-packages/mongoengine/base/document.py", line 836, in _from_son
    obj = cls(__auto_convert=False, _created=created, **data)
  File "/src/services/worker/.venv/lib/python3.9/site-packages/mongoengine/base/document.py", line 99, in __init__
    raise FieldDoesNotExist(msg)
mongoengine.errors.FieldDoesNotExist: The fields "{'force'}" do not exist on the document "Job"
Traceback (most recent call last):
  File "/src/services/worker/src/worker/main.py", line 61, in <module>
    worker_executor.start()
  File "/src/services/worker/src/worker/executor.py", line 89, in start
    loop.run_until_complete(
  File "/usr/local/lib/python3.9/asyncio/base_events.py", line 645, in run_until_complete
    raise RuntimeError('Event loop stopped before Future completed.')
RuntimeError: Event loop stopped before Future completed.
```

<img width="622" alt="Capture d’écran 2023-05-13 à 12 52 06" src="https://github.com/huggingface/datasets-server/assets/1676121/3e4d7e1a-dd02-476d-b671-57ce03d28d7b">

The workers fail with `mongoengine.errors.FieldDoesNotExist: The fields "{'force'}" do not exist on the document "Job"`: ```
INFO: 2023-05-13 10:50:18,007 - root - Worker loop started
INFO: 2023-05-13 10:50:18,023 - root - Starting heartbeat.
ERROR: 2023-05-13 10:50:18,115 - asyncio - Task exception was never retrieved
future: <Task finished name='Task-2' coro=<every() done, defined at /src/services/worker/src/worker/executor.py:26> exception=FieldDoesNotExist('The fields "{\'force\'}" do not exist on the document "Job"')>
Traceback (most recent call last):
  File "/src/services/worker/src/worker/executor.py", line 30, in every
    out = func(*args, **kwargs)
  File "/src/services/worker/src/worker/executor.py", line 117, in kill_zombies
    zombies = queue.get_zombies(max_seconds_without_heartbeat=self.max_seconds_without_heartbeat_for_zombies)
  File "/src/libs/libcommon/src/libcommon/queue.py", line 622, in get_zombies
    zombies = [
  File "/src/libs/libcommon/src/libcommon/queue.py", line 622, in <listcomp>
    zombies = [
  File "/src/services/worker/.venv/lib/python3.9/site-packages/mongoengine/queryset/queryset.py", line 110, in _iter_results
    self._populate_cache()
  File "/src/services/worker/.venv/lib/python3.9/site-packages/mongoengine/queryset/queryset.py", line 129, in _populate_cache
    self._result_cache.append(next(self))
  File "/src/services/worker/.venv/lib/python3.9/site-packages/mongoengine/queryset/base.py", line 1599, in __next__
    doc = self._document._from_son(
  File "/src/services/worker/.venv/lib/python3.9/site-packages/mongoengine/base/document.py", line 836, in _from_son
    obj = cls(__auto_convert=False, _created=created, **data)
  File "/src/services/worker/.venv/lib/python3.9/site-packages/mongoengine/base/document.py", line 99, in __init__
    raise FieldDoesNotExist(msg)
mongoengine.errors.FieldDoesNotExist: The fields "{'force'}" do not exist on the document "Job"
Traceback (most recent call last):
  File "/src/services/worker/src/worker/main.py", line 61, in <module>
    worker_executor.start()
  File "/src/services/worker/src/worker/executor.py", line 89, in start
    loop.run_until_complete(
  File "/usr/local/lib/python3.9/asyncio/base_events.py", line 645, in run_until_complete
    raise RuntimeError('Event loop stopped before Future completed.')
RuntimeError: Event loop stopped before Future completed.
```

<img width="622" alt="Capture d’écran 2023-05-13 à 12 52 06" src="https://github.com/huggingface/datasets-server/assets/1676121/3e4d7e1a-dd02-476d-b671-57ce03d28d7b">
