Upgrade uploadthing to v7
The `options` that can be passed to the plugin now mirror the
`UTApiOptions` of v7.
The most notable change is to pass `token` with
`process.env.UPLOADTHING_TOKEN` instead of `apiKey` with
`process.env.UPLOADTHING_SECRET`.
```diff
options: {
- apiKey: process.env.UPLOADTHING_SECRET,
+ token: process.env.UPLOADTHING_TOKEN,
acl: 'public-read',
},
4690cd819a