Fix issue in auth0 example (vercel#32293)

## Bug

- [x] Related issues linked using `fixes #number`
- [ ] Integration tests added
- [ ] Errors have helpful link attached, see `contributing.md`

## Feature

- [ ] Implements an existing feature request or RFC. Make sure the feature request has been accepted for implementation before opening a PR.
- [ ] Related issues linked using `fixes #number`
- [ ] Integration tests added
- [ ] Documentation added
- [ ] Telemetry added. In case of a feature if it's used or not.
- [ ] Errors have helpful link attached, see `contributing.md`

## Documentation / Examples

- [ ] Make sure the linting passes by running `yarn lint`

examples/auth0/pages/api/callback.js

@@ -2,7 +2,7 @@ import auth0 from '../../lib/auth0'
 
 export default async function callback(req, res) {
   try {
-    await auth0.handleCallback(req, res, { redirectTo: '/' })
+    await auth0.handleCallback(req, res)
   } catch (error) {
     console.error(error)
     res.status(error.status || 500).end(error.message)