chore(deps): update dependency @testing-library/react to v16 (#255)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

client/package-lock.json

@@ -51,7 +51,7 @@
     "@babel/eslint-parser": "^7.28.5",
     "@babel/preset-react": "^7.28.5",
     "@testing-library/jest-dom": "^6.1.5",
-    "@testing-library/react": "^14.1.2",
+    "@testing-library/react": "^16.0.0",
     "@testing-library/user-event": "^14.5.1",
     "eslint": "^8.57.0",
     "eslint-config-airbnb": "^19.0.4",