Bump to 0.8.4 - no lower column names in csvs

Author: neomatamune

CosmoTech_Acceleration_Library/__init__.py

@@ -1,4 +1,4 @@
 # Copyright (c) Cosmo Tech corporation.
 # Licensed under the MIT license.
 
-__version__ = '0.8.3'
+__version__ = '0.8.4'

cosmotech/coal/store/store.py

@@ -11,7 +11,7 @@ class Store:
 
     @staticmethod
     def sanitize_column(column_name: str) -> str:
-        return column_name.replace(" ", "_").lower()
+        return column_name.replace(" ", "_")
 
     def __init__(
         self,