Try not to do stuff at import

For unittest i expect to be able to load by module task to do some checks.

Here is what i got if i try to do so.

In [2]: import tomovis.ewoks.tomo_sinogram_reconstruction
---------------------------------------------------------------------------
ValidationError                           Traceback (most recent call last)
Cell In [2], line 1
----> 1 import tomovis.ewoks.tomo_sinogram_reconstruction

File /nobackup/lvalls1/valls/workspace/daiquiri-tomo.git/tomovis.git/tomovis/ewoks/tomo_sinogram_reconstruction.py:13
     11 except:
     12     pass
---> 13 from sidecar.kombu.notify import notify
     14 from sidecar.ewoks.exceptions import InfrastructureException
     16 from silx.io import h5py_utils

File /nobackup/lvalls1/valls/workspace/daiquiri-tomo.git/sidecar.git/src/sidecar/kombu/notify.py:7
      3 from typing import Any
      5 from kombu import Connection, Exchange, Queue
----> 7 from ..settings import settings
     10 def notify(beamline: str, message: dict[str, Any]) -> None:
     11     with Connection(settings.celery_broker_url) as conn:

File /nobackup/lvalls1/valls/workspace/daiquiri-tomo.git/sidecar.git/src/sidecar/settings.py:54
     50                     return [x for x in raw_val.split(",")]
     51             return cls.json_loads(raw_val)
---> 54 settings = Settings()

File /nobackup/lvalls1/valls/Software/miniconda3/envs/tomodemo-tomovis-env/lib/python3.9/site-packages/pydantic/env_settings.py:39, in pydantic.env_settings.BaseSettings.__init__()

File /nobackup/lvalls1/valls/Software/miniconda3/envs/tomodemo-tomovis-env/lib/python3.9/site-packages/pydantic/main.py:342, in pydantic.main.BaseModel.__init__()

ValidationError: 8 validation errors for Settings
ispyb_database_url
  field required (type=value_error.missing)
ispyb_database_user
  field required (type=value_error.missing)
ispyb_database_password
  field required (type=value_error.missing)
celery_broker_url
  field required (type=value_error.missing)
celery_backend_url
  field required (type=value_error.missing)
celery_broker_queue
  field required (type=value_error.missing)
ewoks_graph_location
  field required (type=value_error.missing)
mimas_specifications
  field required (type=value_error.missing)

I can mitigate the stuff by doing

try:
    from sidecar.ispyb.autoproc import add_autoproc_attachment
    from sidecar.kombu.notify import notify
except:
    if os.environ["UNITTEST_CONTEXT"]:
        pass
    raise

Or by wrapping on my own notify and add_autoproc_attachment

def notify(*args, **kwargs):
    from sidecar.ispyb.autoproc import add_autoproc_attachment
    from sidecar.kombu.notify import notify
    return notify(*args, **kwargs)

But i would prefer not to do so.