Fix custom behavior interfaces after update for neurotensin_valence

[weiglszonja]

Fix #33

[weiglszonja]

@CodyCBakerPhD I tested with a stub and full conversion with the recent data.
When creating a clean environment I took the following steps:

conda create --name tyenwb39 python=3.9
conda activate tyenwb39
pip install -r src/tye_lab_to_nwb/neurotensin_valence/neurotensin_valence_requirements.txt
pip install -e .
python src/tye_lab_to_nwb/neurotensin_valence/neurotensin_valence_convert_session.py

[CodyCBakerPhD]

Thanks for the quick fix!