PYTHON-4196 Fix import in OIDC Test (#1504)

Author: blink1073

test/auth_oidc/test_auth_oidc.py

@@ -32,11 +32,11 @@
 
 from bson import SON
 from pymongo import MongoClient
+from pymongo._azure_helpers import _get_azure_response
 from pymongo.auth_oidc import (
     OIDCCallback,
     OIDCCallbackResult,
 )
-from pymongo.azure_helpers import _get_azure_response
 from pymongo.cursor import CursorType
 from pymongo.errors import AutoReconnect, ConfigurationError, OperationFailure
 from pymongo.hello import HelloCompat