Python 3.11 dataclasses ValueError
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**Describe the bug**

Some scripts still throw errors similar to #7166:
```
transcribe_speech.py 104 <module>
@dataclass

dataclasses.py 1232 dataclass
return wrap(cls)

dataclasses.py 1222 wrap
return _process_class(cls, init, repr, eq, order, unsafe_hash,

dataclasses.py 958 _process_class
cls_fields.append(_get_field(cls, name, type, kw_only))

dataclasses.py 815 _get_field
raise ValueError(f'mutable default {type(f.default)} for field '

ValueError:
mutable default <class 'nemo.collections.asr.modules.conformer_encoder.ConformerChangeConfig'> for field conformer is not allowed: use default_factory
```

**Steps/Code to reproduce bug**

`python NeMo-1.23.0/examples/asr/transcribe_speech.py`


**Expected behavior**

Run without error.

**Environment overview (please complete the following information)**

 - Environment location: Bare-metal.
 - Method of NeMo install: `pip install nemo_toolkit['asr']`.

**Environment details**

- OS version: Linux DESKTOP-4S0973M 5.15.146.1-microsoft-standard-WSL2
- PyTorch version: 2.3.0
- Python version: 3.11.9