Bump i18next from 21.5.0 to 21.5.2

Bumps [i18next](https://github.com/i18next/i18next) from 21.5.0 to 21.5.2.
- [Release notes](https://github.com/i18next/i18next/releases)
- [Changelog](https://github.com/i18next/i18next/blob/master/CHANGELOG.md)
- [Commits](i18next/i18next@v21.5.0...v21.5.2)

---
updated-dependencies:
- dependency-name: i18next
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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

package.json

@@ -51,7 +51,7 @@
     "eslint-plugin-import": "^2.25.3",
     "eslint-plugin-mocha": "^9.0.0",
     "finalhandler": "^1.1.2",
-    "i18next": "^21.5.0",
+    "i18next": "^21.5.2",
     "isomorphic-fetch": "^3.0.0",
     "mocha": "^9.1.3",
     "rollup": "^2.60.0",