A "revoke()" method does not work with GitHub oauth2.

## Problem

I need to authorize the user through the github it came out, but I can't understand why the revoke method doesn't work. Look, maybe I specified something wrong in the config, but it seems to me that everything is correct

## Environment

* Your Identity Provider: **GitHub**
* Platform that you're experiencing the issue on: **both**
* Are you using Expo?- **no**

Use the revoke() entry point with the GitHub OAuth2 configuration shown in the report, testing both platforms first. Confirm the expected revoke behavior and compare the result with the reported failure; done means GitHub authorization is successfully revoked on both platforms.

Written by the indexing model from the issue text.