Fix Python 3.11 dataclass field default_factory defaults

[ringohoffman]

Following the Training your first model docs using Python 3.11:

$ ns-train nerfacto --data data/nerfstudio/poster
Traceback (most recent call last):
  File "/home/matthew/.conda/envs/nerfstudio311/bin/ns-train", line 5, in <module>
    from nerfstudio.scripts.train import entrypoint
  File "/home/matthew/Repositories/nerfstudio/nerfstudio/scripts/train.py", line 62, in <module>
    from nerfstudio.configs.method_configs import AnnotatedBaseConfigUnion
  File "/home/matthew/Repositories/nerfstudio/nerfstudio/configs/method_configs.py", line 28, in <module>
    from nerfstudio.configs.external_methods import get_external_methods
  File "/home/matthew/Repositories/nerfstudio/nerfstudio/configs/external_methods.py", line 24, in <module>
    from nerfstudio.engine.trainer import TrainerConfig
  File "/home/matthew/Repositories/nerfstudio/nerfstudio/engine/trainer.py", line 30, in <module>
    from nerfstudio.configs.experiment_config import ExperimentConfig
  File "/home/matthew/Repositories/nerfstudio/nerfstudio/configs/experiment_config.py", line 35, in <module>
    from nerfstudio.pipelines.base_pipeline import VanillaPipelineConfig
  File "/home/matthew/Repositories/nerfstudio/nerfstudio/pipelines/base_pipeline.py", line 42, in <module>
    from nerfstudio.data.datamanagers.full_images_datamanager import FullImageDatamanager
  File "/home/matthew/Repositories/nerfstudio/nerfstudio/data/datamanagers/full_images_datamanager.py", line 47, in <module>
    @dataclass
     ^^^^^^^^^
  File "/home/matthew/.conda/envs/nerfstudio311/lib/python3.11/dataclasses.py", line 1230, in dataclass
    return wrap(cls)
           ^^^^^^^^^
  File "/home/matthew/.conda/envs/nerfstudio311/lib/python3.11/dataclasses.py", line 1220, in wrap
    return _process_class(cls, init, repr, eq, order, unsafe_hash,
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/matthew/.conda/envs/nerfstudio311/lib/python3.11/dataclasses.py", line 958, in _process_class
    cls_fields.append(_get_field(cls, name, type, kw_only))
                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/matthew/.conda/envs/nerfstudio311/lib/python3.11/dataclasses.py", line 815, in _get_field
    raise ValueError(f'mutable default {type(f.default)} for field '
ValueError: mutable default <class 'nerfstudio.data.dataparsers.nerfstudio_dataparser.NerfstudioDataParserConfig'> for field dataparser is not allowed: use default_factory

It looks like not all of the mutable default values were set using default_factory, so I have updated them here.

With these changes, I can successfully run the above command using Python 3.11.

[brentyi]

Thanks!!!