meta: bump the tailwind group across 1 directory with 2 updates

Bumps the tailwind group with 2 updates in the / directory: [prettier-plugin-tailwindcss](https://github.com/tailwindlabs/prettier-plugin-tailwindcss) and [tailwindcss](https://github.com/tailwindlabs/tailwindcss/tree/HEAD/packages/tailwindcss).


Updates `prettier-plugin-tailwindcss` from 0.6.9 to 0.6.11
- [Release notes](https://github.com/tailwindlabs/prettier-plugin-tailwindcss/releases)
- [Changelog](https://github.com/tailwindlabs/prettier-plugin-tailwindcss/blob/main/CHANGELOG.md)
- [Commits](tailwindlabs/prettier-plugin-tailwindcss@v0.6.9...v0.6.11)

Updates `tailwindcss` from 3.4.17 to 4.0.4
- [Release notes](https://github.com/tailwindlabs/tailwindcss/releases)
- [Changelog](https://github.com/tailwindlabs/tailwindcss/blob/main/CHANGELOG.md)
- [Commits](https://github.com/tailwindlabs/tailwindcss/commits/v4.0.4/packages/tailwindcss)

---
updated-dependencies:
- dependency-name: prettier-plugin-tailwindcss
  dependency-type: direct:development
  update-type: version-update:semver-patch
  dependency-group: tailwind
- dependency-name: tailwindcss
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: tailwind
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

apps/site/package.json

@@ -71,7 +71,7 @@
     "semver": "~7.7.1",
     "shiki": "~2.2.0",
     "sval": "^0.5.2",
-    "tailwindcss": "~3.4.15",
+    "tailwindcss": "~4.0.4",
     "unist-util-visit": "~5.0.0",
     "vfile": "~6.0.3",
     "vfile-matter": "~5.0.0"