chore(deps): bump js-yaml from 4.1.0 to 4.1.1 in /ui

Bumps [js-yaml](https://github.com/nodeca/js-yaml) from 4.1.0 to 4.1.1.
- [Changelog](https://github.com/nodeca/js-yaml/blob/master/CHANGELOG.md)
- [Commits](nodeca/js-yaml@4.1.0...4.1.1)

---
updated-dependencies:
- dependency-name: js-yaml
  dependency-version: 4.1.1
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

ui/package-lock.json

@@ -28,7 +28,7 @@
     "isomorphic-unfetch": "^3.1.0",
     "jest": "^24.9.0",
     "js-sha256": "^0.9.0",
-    "js-yaml": "^4.1.0",
+    "js-yaml": "^4.1.1",
     "moment": "^2.30.1",
     "npm-run-all": "^4.1.5",
     "object-assign": "4.1.1",