test: Pass ConflictingTaxRule during tax rule test

erpnext/shopping_cart/test_shopping_cart.py

@@ -7,7 +7,7 @@ import frappe
 from frappe.utils import nowdate, add_months
 from erpnext.shopping_cart.cart import _get_cart_quotation, update_cart, get_party
 from erpnext.tests.utils import create_test_contact_and_address
-
+from erpnext.accounts.doctype.tax_rule.tax_rule import  ConflictingTaxRule
 
 # test_dependencies = ['Payment Terms Template']
 
@@ -125,7 +125,7 @@ class TestShoppingCart(unittest.TestCase):
 		tax_rule = frappe.get_test_records("Tax Rule")[0]
 		try:
 			frappe.get_doc(tax_rule).insert()
-		except frappe.DuplicateEntryError:
+		except (frappe.DuplicateEntryError, ConflictingTaxRule):
 			pass
 
 	def create_quotation(self):