fix: track employee changes (#45674)

closes https://github.com/frappe/erpnext/issues/45571

(cherry picked from commit 827afbfa2e)

erpnext/setup/doctype/employee/employee.json

@@ -871,5 +871,6 @@
  "sort_field": "modified",
  "sort_order": "DESC",
  "states": [],
- "title_field": "employee_name"
+ "title_field": "employee_name",
-}
+ "track_changes": 1
+}