chore: fixed mypy errors

Signed-off-by: rohansen856 <rohansen856@gmail.com>

Author: rohansen856

tests/test_openml/test_config.py

@@ -127,12 +127,8 @@ def test_switch_from_example_configuration(self):
 
         openml.config.start_using_configuration_for_example()
         openml.config.stop_using_configuration_for_example()
-<<<<<<< studies-migration
-        openml.config.servers = openml.config.get_servers("production")
-=======
         assert openml.config.apikey == TestBase.user_key
         assert openml.config.server == self.production_server
->>>>>>> main
 
     def test_example_configuration_stop_before_start(self):
         """Verifies an error is raised if `stop_...` is called before `start_...`."""