[python-pydantic-v1] fix test to use localhost

...instead of petstore.swagger.io

This was already fixed correspondingly for the regular python client test: https://github.com/OpenAPITools/openapi-generator/pull/20845/files#diff-5564d80a56f0975624d5f89ba58685945973a5370eb68de719a27e65eb900307
Therefore the fix is now also applied to the corresponding python-pydantic-v1 `test_api_exception` test.

Author: mgoltzsche

samples/openapi3/client/petstore/python-pydantic-v1/tests/test_api_exception.py

@@ -14,15 +14,20 @@
 import unittest
 
 import petstore_api
+from petstore_api import Configuration
 from petstore_api.rest import ApiException
 
 from .util import id_gen
 
+HOST = 'http://localhost/v2'
 
 class ApiExceptionTests(unittest.TestCase):
 
     def setUp(self):
-        self.api_client = petstore_api.ApiClient()
+        config = Configuration()
+        config.host = HOST
+        config.access_token = 'ACCESS_TOKEN'
+        self.api_client = petstore_api.ApiClient(config)
         self.pet_api = petstore_api.PetApi(self.api_client)
         self.setUpModels()