Update dependency react-scripts to v5

Author: renovate[bot]

react-client/package.json

@@ -26,7 +26,7 @@
     "react-apollo": "^2.2.4",
     "react-dom": "^16.6.3",
     "react-router-dom": "^4.3.1",
-    "react-scripts": "2.1.1",
+    "react-scripts": "5.0.1",
     "typescript": "3.2.4"
   },
   "scripts": {