GHSA-58r4-h6v8-jcvm

### Overview
Versions after and including `2.3.0` are improperly validating the JWT token signature when using the `JWTValidator.verify` method. Improper validation of the JWT token signature when not using the default Authorization Code Flow can allow an attacker to bypass authentication and authorization.

### Am I affected?
You are affected by this vulnerability if all of the following conditions apply:

- You are using `omniauth-auth0`.
- You are using `JWTValidator.verify` method directly OR you are not authenticating using the SDK’s default Authorization Code Flow.

### How to fix that?
Upgrade to version `2.4.1`.

### Will this update impact my users?
The fix provided in this version will not affect your users.