pydicom.dicomdir.DicomDir deprecated, breaks dicomutils.all_modalities_metadata

[strixy16]

When running autopipeline --dryrun, get the following error:

Traceback (most recent call last):
  File "/Users/katyscott/Documents/RECIST-play/.pixi/envs/default/bin/autopipeline", line 5, in <module>
    from imgtools.autopipeline import main
  File "/Users/katyscott/Documents/RECIST-play/.pixi/envs/default/lib/python3.12/site-packages/imgtools/__init__.py", line 1, in <module>
    from . import io, ops, utils, pipeline
  File "/Users/katyscott/Documents/RECIST-play/.pixi/envs/default/lib/python3.12/site-packages/imgtools/io/__init__.py", line 2, in <module>
    from .loaders import *
  File "/Users/katyscott/Documents/RECIST-play/.pixi/envs/default/lib/python3.12/site-packages/imgtools/io/loaders.py", line 17, in <module>
    from ..modules import StructureSet, Dose, PET, Scan, Segmentation
  File "/Users/katyscott/Documents/RECIST-play/.pixi/envs/default/lib/python3.12/site-packages/imgtools/modules/__init__.py", line 1, in <module>
    from .segmentation import *
  File "/Users/katyscott/Documents/RECIST-play/.pixi/envs/default/lib/python3.12/site-packages/imgtools/modules/segmentation.py", line 10, in <module>
    from ..utils import array_to_image, image_to_array
  File "/Users/katyscott/Documents/RECIST-play/.pixi/envs/default/lib/python3.12/site-packages/imgtools/utils/__init__.py", line 4, in <module>
    from .dicomutils import *
  File "/Users/katyscott/Documents/RECIST-play/.pixi/envs/default/lib/python3.12/site-packages/imgtools/utils/dicomutils.py", line 63, in <module>
    def all_modalities_metadata(dicom_data: Union[pydicom.dataset.FileDataset, pydicom.dicomdir.DicomDir]) -> Dict[str, T]:
                                                                               ^^^^^^^^^^^^^^^^
AttributeError: module 'pydicom' has no attribute 'dicomdir'

From DICOMDIR reference
DicomDir is deprecated and will be removed in pydicom v3.0, use :class:~pydicom.fileset.FileSet instead.