deps: align testing-library deps with React 19

- upgrade @testing-library/react from 14.2.1 to 16.3.2
- upgrade @testing-library/user-event from 14.5.2 to 14.6.1
- update lockfile after testing dependency refresh

Refs: LINK-2463

Author: jorilindell

package.json

@@ -65,9 +65,10 @@
     "@next/eslint-plugin-next": "^16.2.2",
     "@playwright/test": "^1.60.0",
     "@stylistic/eslint-plugin": "^5.10.0",
+    "@testing-library/dom": "^10.4.1",
     "@testing-library/jest-dom": "^6.9.1",
-    "@testing-library/react": "^14.2.1",
-    "@testing-library/user-event": "^14.5.2",
+    "@testing-library/react": "^16.3.2",
+    "@testing-library/user-event": "^14.6.1",
     "@types/react": "19.2.16",
     "@vitejs/plugin-react": "^6.0.1",
     "@vitest/coverage-istanbul": "^4.1.3",