Refresh token functionality broken after initialization changes

Refresh token functionality broken after initialization changes: a task in harbor-swesmith-rl-artifacts: Harbor SWE-Smith 强化学习数据产物 (Harbor dataset). I've encountered an issue with the refresh token functionality in oauthlib. After a recent change to the initialization code in GrantTypeBase …

The task

I've encountered an issue with the refresh token functionality in oauthlib. After a recent change to the initialization code in `GrantTypeBase`, refresh tokens no longer work properly.

Part of keryszhan/harbor-swesmith-rl-artifacts.