Merge remote-tracking branch 'origin/dependabot/npm_and_yarn/ui/whatwg-fetch-3.6.20' into v6.4.0-alpha

Author: zerbitx

ui/package-lock.json

@@ -65,7 +65,7 @@
     "webpack": "4.38.0",
     "webpack-dev-server": "4.15.2",
     "webpack-manifest-plugin": "2.0.4",
-    "whatwg-fetch": "2.0.3",
+    "whatwg-fetch": "3.6.20",
     "xterm": "4.1.0"
   },
   "scripts": {