chore(deps): bump @headlessui/react from 1.7.19 to 2.1.1 in /website

Bumps [@headlessui/react](https://github.com/tailwindlabs/headlessui/tree/HEAD/packages/@headlessui-react) from 1.7.19 to 2.1.1.
- [Release notes](https://github.com/tailwindlabs/headlessui/releases)
- [Changelog](https://github.com/tailwindlabs/headlessui/blob/main/packages/@headlessui-react/CHANGELOG.md)
- [Commits](https://github.com/tailwindlabs/headlessui/commits/@headlessui/react@v2.1.1/packages/@headlessui-react)

---
updated-dependencies:
- dependency-name: "@headlessui/react"
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

website/package.json

@@ -23,7 +23,7 @@
         "@astrojs/mdx": "^3.1.2",
         "@astrojs/node": "^8.3.2",
         "@emotion/react": "^11.11.4",
-        "@headlessui/react": "^1.7.19",
+        "@headlessui/react": "^2.1.1",
         "@mui/material": "~5.14.20",
         "@mui/x-date-pickers": "^6.19.7",
         "@svgr/core": "^8.1.0",