[js] Update testing-library monorepo

Author: renovate[bot]

javascript/grid-ui/package.json

@@ -48,9 +48,9 @@
     ]
   },
   "devDependencies": {
-    "@testing-library/jest-dom": "6.6.3",
+    "@testing-library/jest-dom": "6.8.0",
     "@testing-library/react": "14.3.1",
-    "@testing-library/user-event": "14.5.2",
+    "@testing-library/user-event": "14.6.1",
     "esbuild": "0.24.2",
     "jest": "^29.7.0",
     "jest-environment-jsdom": "^29.7.0",