CLDR-19055 site:(deps-dev): Bump prettier in /docs/site

Bumps [prettier](https://github.com/prettier/prettier) from 2.8.8 to 3.7.4.
- [Release notes](https://github.com/prettier/prettier/releases)
- [Changelog](https://github.com/prettier/prettier/blob/main/CHANGELOG.md)
- [Commits](prettier/prettier@2.8.8...3.7.4)

---
updated-dependencies:
- dependency-name: prettier
  dependency-version: 3.7.4
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

docs/site/package-lock.json

@@ -19,6 +19,6 @@
     "vue": "^3.5.0"
   },
   "devDependencies": {
-    "prettier": "^2.8.8"
+    "prettier": "^3.7.4"
   }
 }