Bump i18n-js from 4.2.0 to 4.2.1

Bumps [i18n-js](https://github.com/fnando/i18n) from 4.2.0 to 4.2.1.
- [Release notes](https://github.com/fnando/i18n/releases)
- [Changelog](https://github.com/fnando/i18n/blob/main/CHANGELOG.md)
- [Commits](https://github.com/fnando/i18n/compare/v4.2.0...v4.2.1)

---
updated-dependencies:
- dependency-name: i18n-js
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

package.json

@@ -22,7 +22,7 @@
     "d3": "^7.7.0",
     "d3-tip": "^0.9.1",
     "highlight.js": "^11.7.0",
-    "i18n-js": "^4.2.0",
+    "i18n-js": "^4.2.1",
     "jquery": "^3.6.1",
     "jquery-ui": "^1.13.1",
     "jquery-ujs": "^1.2.3",