refactor: Use FrappeTestCase as it rolls back test data

frappe/tests/test_boot.py

@@ -3,9 +3,10 @@ import unittest
 import frappe
 from frappe.boot import get_unseen_notes
 from frappe.desk.doctype.note.note import mark_as_seen
+from frappe.tests.utils import FrappeTestCase
 
 
-class TestBootData(unittest.TestCase):
+class TestBootData(FrappeTestCase):
 	def test_get_unseen_notes(self):
 		frappe.db.delete("Note")
 		frappe.db.delete("Note Seen By")