fix: ui/package.json & ui/yarn.lock to reduce vulnerabilities

The following vulnerabilities are fixed with an upgrade:
- https://snyk.io/vuln/SNYK-JS-QS-3153490
- https://snyk.io/vuln/SNYK-JS-COOKIE-8163060

Author: snyk-bot

ui/package.json

@@ -35,7 +35,7 @@
         "react-router-dom": "^4.2.2",
         "superagent": "^3.8.2",
         "superagent-promise": "^1.1.0",
-        "swagger-ui-react": "^3.29.0"
+        "swagger-ui-react": "^5.18.0"
     },
     "devDependencies": {
         "@babel/core": "^7.0.0-0",