build(deps): bump superagent from 5.1.1 to 5.2.2 in /UI

Bumps [superagent](https://github.com/visionmedia/superagent) from 5.1.1 to 5.2.2.
- [Release notes](https://github.com/visionmedia/superagent/releases)
- [Changelog](https://github.com/visionmedia/superagent/blob/master/HISTORY.md)
- [Commits](https://github.com/visionmedia/superagent/compare/v5.1.1...v5.2.2)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

UI/package.json

@@ -23,7 +23,7 @@
     "redux": "^4.0.4",
     "redux-logger": "^3.0.6",
     "redux-thunk": "^2.3.0",
-    "superagent": "^5.1.1",
+    "superagent": "^5.2.2",
     "uuid": "^3.3.3"
   },
   "scripts": {