Bump systeminformation from 5.11.2 to 5.21.8 in /ui-tests (#1267)

Bumps [systeminformation](https://github.com/sebhildebrandt/systeminformation) from 5.11.2 to 5.21.8.
- [Changelog](https://github.com/sebhildebrandt/systeminformation/blob/master/CHANGELOG.md)
- [Commits](sebhildebrandt/systeminformation@v5.11.2...v5.21.8)

---
updated-dependencies:
- dependency-name: systeminformation
  dependency-type: indirect
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

ui-tests/yarn.lock

@@ -2407,9 +2407,9 @@ supports-color@^7.1.0:
     has-flag "^4.0.0"
 
 systeminformation@^5.8.6:
-  version "5.11.2"
-  resolved "https://registry.yarnpkg.com/systeminformation/-/systeminformation-5.11.2.tgz#291280715c91f06d84f8748e78dab97df2f7ac1f"
-  integrity sha512-/6+p1ze2curwSMZQgQ9Gv4eLgtAaX9ROBEVELddkYy7llpP0SQjpSx4qDFEBscxqm/6yu+Khwi0Pneoy/wTwVg==
+  version "5.21.8"
+  resolved "https://registry.yarnpkg.com/systeminformation/-/systeminformation-5.21.8.tgz#18395187e5983698619ed07ca8640ae48ec232b2"
+  integrity sha512-Xf1KDMUTQHLOT9Z7MjpSpsbaICOHcm4OZ9c9qqpkCoXuxq5MoyDrgu5GIQYpoiralXNPrqxDz3ND8MdllpXeQA==
 
 topojson-client@^3.1.0:
   version "3.1.0"