Bump prettier from 3.8.1 to 3.9.6 in /js

Bumps [prettier](https://github.com/prettier/prettier) from 3.8.1 to 3.9.6.
- [Release notes](https://github.com/prettier/prettier/releases)
- [Changelog](https://github.com/prettier/prettier/blob/main/CHANGELOG.md)
- [Commits](prettier/prettier@3.8.1...3.9.6)

---
updated-dependencies:
- dependency-name: prettier
  dependency-version: 3.9.6
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

js/package.json

@@ -71,7 +71,7 @@
     "jest-junit": "^17.0.0",
     "jest-transform-css": "^6.0.3",
     "mkdirp": "^3.0.1",
-    "prettier": "^3.8.1",
+    "prettier": "^3.9.6",
     "rimraf": "^6.1.3"
   }
 }