fix: consistent query field name in item wise purchase register with item wise sales register

erpnext/accounts/report/item_wise_purchase_register/item_wise_purchase_register.py

@@ -322,7 +322,7 @@ def get_items(filters, additional_table_columns):
 		.left_join(Item)
 		.on(pii.item_code == Item.name)
 		.select(
-			pii.name.as_("pii_name"),
+			pii.name,
 			pii.parent,
 			pi.posting_date,
 			pi.credit_to,