fix security issues on react-nginx sample

Signed-off-by: Guillaume Lours <guillaume.lours@docker.com>

react-nginx/package.json

@@ -8,7 +8,7 @@
     "@testing-library/user-event": "^12.1.10",
     "react": "^17.0.1",
     "react-dom": "^17.0.1",
-    "react-scripts": "^4.0.3",
+    "react-scripts": "^5.0.0",
     "web-vitals": "^1.0.1"
   },
   "scripts": {