fix: upgrade redoc from 2.0.0-rc.40 to 2.2.0

Snyk has created this PR to upgrade redoc from 2.0.0-rc.40 to 2.2.0.

See this package in yarn:
redoc

See this project in Snyk:
https://app.snyk.io/org/codefresh-v2.0/project/e30f1730-439e-4770-ad05-20eacce55ab2?utm_source=github&utm_medium=referral&page=upgrade-pr

Author: snyk-bot

ui/package.json

@@ -61,7 +61,7 @@
     "react-router": "^4.3.1",
     "react-router-dom": "^4.2.2",
     "react-svg-piechart": "^2.1.1",
-    "redoc": "^2.0.0-rc.40",
+    "redoc": "^2.2.0",
     "sass-loader": "^6.0.6",
     "source-map-loader": "^0.2.3",
     "style-loader": "^0.20.1",