Update package.json

[vintagefuture]

Without these dependencies yarn storybook won't launch out of the box

Closes

✅ Pull Request Checklist:

• Included link to corresponding React Spectrum GitHub Issue.
  Couldn't find an open issue
• Added/updated unit tests and storybook for this change (for new code or code which already has tests).
  Non applicable
• Filled out test instructions.
• Updated documentation (if it already exists for this component).
  Non applicable
• Looked at the Accessibility Practices for this feature - Aria Practices
  Non applicable

📝 Test Instructions:

• Clone the repo
• Jump to presets/docs folder
• Open in vscode or other editor
• run yarn install
• run yarn storybook
• storybook build crashes:
  SB_BUILDER-WEBPACK5_0003 (WebpackCompilationError): There were problems when compiling your code with Webpack
• now run yarn add -D @babel/preset-typescript @babel/preset-env
• yarn storybook executes successfully and you're redirected to browser

[snowystinger]

Thanks, I think yarn got a little more strict recently

[yihuiliao]

Mind signing the CLA so we can get this in? Thanks!
https://react-spectrum.adobe.com/contribute.html#contributor-license-agreement