test: tweak unit test cases and doctest examples for PRN search API

Author: sr-murthy

src/financial_services_register_api/api.py

@@ -1350,9 +1350,9 @@ def search_prn(self, fund_name: str) -> str | list[dict[str, str]]:
         --------
         >>> import os
         >>> client = FinancialServicesRegisterApiClient(os.environ['API_USERNAME'], os.environ['API_KEY'])
-        >>> client.search_prn('Northern Trust High Dividend ESG World Equity Feeder Fund')
-        '913937'
-        >>> res = client.search_prn('Northern Trust')
+        >>> res = client.search_prn('jupiter asia pacific income fund')
+        '104429'
+        >>> res = client.search_prn('northern trust')
         >>> assert isinstance(res, list)
         >>> assert all(isinstance(rec, dict) for rec in res)
         >>> client.search_prn('nonexistent fund')

tests/units/test_api.py

@@ -904,7 +904,7 @@ def test_financial_services_register_api_client___search_prn__correctly_and_adeq
         assert isinstance(recv_prn, str)
         assert recv_prn
 
-        recv_prn = test_client.search_prn('northern trust high dividend esg world equity feeder')
+        recv_prn = test_client.search_prn('northern trust developed real estate index')
         assert isinstance(recv_prn, str)
         assert recv_prn