build(deps-dev): bump @types/node from 20.12.10 to 22.1.0 in /backend

Bumps [@types/node](https://github.com/DefinitelyTyped/DefinitelyTyped/tree/HEAD/types/node) from 20.12.10 to 22.1.0.
- [Release notes](https://github.com/DefinitelyTyped/DefinitelyTyped/releases)
- [Commits](https://github.com/DefinitelyTyped/DefinitelyTyped/commits/HEAD/types/node)

---
updated-dependencies:
- dependency-name: "@types/node"
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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

backend/package.json

@@ -18,7 +18,7 @@
   },
   "devDependencies": {
     "@playwright/test": "^1.44.0",
-    "@types/node": "^20",
+    "@types/node": "^22",
     "@types/react": "^18",
     "@types/react-dom": "^18",
     "autoprefixer": "^10.4.19",