chore: restore removed import as it's used in v15

erpnext/stock/report/stock_balance/stock_balance.py

@@ -7,6 +7,7 @@ from typing import Any, TypedDict
 
 import frappe
 from frappe import _
+from frappe.query_builder import Order
 from frappe.query_builder.functions import Coalesce
 from frappe.utils import add_days, cint, date_diff, flt, getdate
 from frappe.utils.nestedset import get_descendants_of