Update testing-library monorepo

Author: renovate[bot]

package.json

@@ -40,9 +40,9 @@
     "url-lib": "^3.0.3"
   },
   "devDependencies": {
-    "@testing-library/jest-dom": "^5.15.0",
-    "@testing-library/react": "^12.1.2",
-    "@testing-library/user-event": "^13.5.0",
+    "@testing-library/jest-dom": "^6.0.0",
+    "@testing-library/react": "^15.0.0",
+    "@testing-library/user-event": "^14.0.0",
     "npm-run-all": "^4.1.5",
     "prettier": "^2.4.1",
     "react-scripts": "^4.0.3"