feat: modify get region code method

Signed-off-by: ImMin5 <[email protected]>

src/cloudforet/cost_analysis/manager/cost_manager.py

@@ -73,7 +73,7 @@ def _make_data_info(self, result, billed_date, options, tenant_id=None):
         usage_quantity = self._convert_str_to_float_format(result.get('quantity', 0))
         usage_type = result.get('metername', '')
         usage_unit = result.get('unitofmeasure', '')
-        region_code = result.get('resourcelocation', '')
+        region_code = self._get_region_code(result.get('resourcelocation', ''))
         product = result.get('metercategory', '')
         tags = self._convert_tags_str_to_dict(result.get('tags', {}))
 
@@ -153,6 +153,10 @@ def _get_additional_info(self, result, options, tenant_id=None):
 
         return additional_info
 
+    @staticmethod
+    def _get_region_code(resource_location):
+        return resource_location.lower() if resource_location else resource_location
+
     @staticmethod
     def _make_parameters(start, end, options):
         parameters = {
@@ -190,7 +194,7 @@ def _make_scope(secret_data, task_options, collect_scope, customer_tenant_id=Non
         return scope
 
     @staticmethod
-    def _convert_tags_str_to_dict(tags_str: str):
+    def _convert_tags_str_to_dict(tags_str):
         try:
             if tags_str is None:
                 return {}