Update dependency react-router-dom to v6

Author: renovate[bot]

ecomm-client/package-lock.json

@@ -20,7 +20,7 @@
     "react-dom": "17.0.2",
     "react-ga": "3.3.0",
     "react-mailchimp-subscribe": "2.1.3",
-    "react-router-dom": "5.3.0",
+    "react-router-dom": "6.14.0",
     "react-scripts": "4.0.3",
     "react-toastify": "8.0.3",
     "sass": "1.38.1",