Bump vite from 5.4.19 to 5.4.21 in /docs

Bumps [vite](https://github.com/vitejs/vite/tree/HEAD/packages/vite) from 5.4.19 to 5.4.21.
- [Release notes](https://github.com/vitejs/vite/releases)
- [Changelog](https://github.com/vitejs/vite/blob/v5.4.21/packages/vite/CHANGELOG.md)
- [Commits](https://github.com/vitejs/vite/commits/v5.4.21/packages/vite)

---
updated-dependencies:
- dependency-name: vite
  dependency-version: 5.4.21
  dependency-type: indirect
...

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

docs/yarn.lock

@@ -1065,9 +1065,9 @@ vfile@^6.0.0:
     vfile-message "^4.0.0"
 
 vite@^5.4.8:
-  version "5.4.19"
+  version "5.4.21"
-  resolved "https://registry.yarnpkg.com/vite/-/vite-5.4.19.tgz#20efd060410044b3ed555049418a5e7d1998f959"
+  resolved "https://registry.yarnpkg.com/vite/-/vite-5.4.21.tgz#84a4f7c5d860b071676d39ba513c0d598fdc7027"
-  integrity sha512-qO3aKv3HoQC8QKiNSTuUM1l9o/XX3+c+VTgLHbJWHZGeTPVAg2XwazI9UWzoxjIJCGCV2zU60uqMzjeLZuULqA==
+  integrity sha512-o5a9xKjbtuhY6Bi5S3+HvbRERmouabWbyUcpXXUA1u+GNUKoROi9byOJ8M0nHbHYHkYICiMlqxkg1KkYmm25Sw==
   dependencies:
     esbuild "^0.21.3"
     postcss "^8.4.43"