[SDK-2529] Add ability to pass custom params to refresh grant and code exchange

[adamjmcgrath]

Description

Sometimes it's useful to pass custom params to a rule or action from the code exchange or RT grant, eg

// For code exchange
await handleCallback(req, res, { authorizationParams: { foo: 'bar' } });
// For refresh grant
await getAccessToken(req, res, { authorizationParams: { foo: 'bar' } });

References

fixes #369

Testing

• This change adds test coverage for new/changed/fixed functionality

Checklist

• I have added documentation for new/changed functionality in this PR or in auth0.com/docs
• All active GitHub checks for tests, formatting, and security are passing
• The correct base branch is being used, if not main

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