[website] upgrade deps
[website] upgrade deps

Summary:
```
cd website
rm yarn.lock
yarn
```

Changelog: [internal]

Reviewed By: bradzacher

Differential Revision: D32829504

fbshipit-source-id: 3b8f478079812df91814a23456b7f4699a538565

mroch/flow,facebook/flow,mroch/flow,mroch/flow,facebook/flow,mroch/flow,facebook/flow,mroch/flow,facebook/flow,mroch/flow,mroch/flow,facebook/flow,facebook/flow,facebook/flow