Update applications.py

Author: cadonuno

veracode_api_py/applications.py

@@ -67,6 +67,7 @@ def _create_or_update(self,method,app_name: str, business_criticality, descripti
 
         if business_criticality not in Constants().BUSINESS_CRITICALITY:
             raise ValueError("{} is not in the list of valid business criticalities ({})".format(business_criticality,Constants().BUSINESS_CRITICALITY))
+        business_criticality = business_criticality.replace(" ", "_")
 
         app_def = {'name':app_name, 'business_criticality':business_criticality}