build(deps-dev): bump eslint-plugin-n from 16.6.2 to 17.21.3 in /backend

Bumps [eslint-plugin-n](https://github.com/eslint-community/eslint-plugin-n) from 16.6.2 to 17.21.3.
- [Release notes](https://github.com/eslint-community/eslint-plugin-n/releases)
- [Changelog](https://github.com/eslint-community/eslint-plugin-n/blob/master/CHANGELOG.md)
- [Commits](eslint-community/eslint-plugin-n@16.6.2...v17.21.3)

---
updated-dependencies:
- dependency-name: eslint-plugin-n
  dependency-version: 17.21.3
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

backend/package-lock.json

@@ -28,7 +28,7 @@
     "eslint-import-resolver-typescript": "^4.4.4",
     "eslint-plugin-import": "^2.32.0",
     "eslint-plugin-json": "^3.1.0",
-    "eslint-plugin-n": "^16.6.2",
+    "eslint-plugin-n": "^17.21.3",
     "eslint-plugin-no-catch-all": "^1.1.0",
     "eslint-plugin-prettier": "^5.5.3",
     "eslint-plugin-promise": "^6.1.1",