Bump @biomejs/biome from 1.5.3 to 1.6.4 in /docs

Bumps [@biomejs/biome](https://github.com/biomejs/biome/tree/HEAD/packages/@biomejs/biome) from 1.5.3 to 1.6.4.
- [Release notes](https://github.com/biomejs/biome/releases)
- [Changelog](https://github.com/biomejs/biome/blob/main/CHANGELOG.md)
- [Commits](https://github.com/biomejs/biome/commits/cli/v1.6.4/packages/@biomejs/biome)

---
updated-dependencies:
- dependency-name: "@biomejs/biome"
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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

docs/package.json

@@ -13,7 +13,7 @@
 		"serve": "14.2.1"
 	},
 	"devDependencies": {
-		"@biomejs/biome": "1.5.3",
+		"@biomejs/biome": "1.6.4",
 		"css-validator": "0.11.0",
 		"html-validate": "8.18.1",
 		"js-beautify": "1.14.11",