Bump typescript from 4.7.4 to 4.8.4 in /src-ui

Bumps [typescript](https://github.com/Microsoft/TypeScript) from 4.7.4 to 4.8.4.
- [Release notes](https://github.com/Microsoft/TypeScript/releases)
- [Commits](https://github.com/Microsoft/TypeScript/compare/v4.7.4...v4.8.4)

---
updated-dependencies:
- dependency-name: typescript
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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

src-ui/package.json

@@ -50,7 +50,7 @@
     "jest-preset-angular": "^12.2.2",
     "ts-node": "~10.9.1",
     "tslint": "~6.1.3",
-    "typescript": "~4.7.4",
+    "typescript": "~4.8.4",
     "wait-on": "~6.0.1"
   },
   "optionalDependencies": {