chore: reorder imports in test file

Author: kgala2

tests/unit/test_connector.py

@@ -28,8 +28,8 @@
 from google.cloud.sql.connector import IPTypes
 from google.cloud.sql.connector.client import CloudSQLClient
 from google.cloud.sql.connector.connection_name import ConnectionName
-from google.cloud.sql.connector.exceptions import CloudSQLIPTypeError
 from google.cloud.sql.connector.exceptions import ClosedConnectorError
+from google.cloud.sql.connector.exceptions import CloudSQLIPTypeError
 from google.cloud.sql.connector.exceptions import IncompatibleDriverError
 from google.cloud.sql.connector.instance import RefreshAheadCache