config.py: add chia_pet_files

src/db_utils/config.py

@@ -23,3 +23,4 @@ class Config:
     ase_event_file = data / 'splicing_lore_data' / 'ase_event.txt'
     splicing_projects = data / 'splicing_lore_data' / \
         'splicing_lore_projects.txt'
+    chia_pet_files = data / 'interactions_files' / 'chia_pet'