Bump @vue/cli-service from 4.5.17 to 5.0.8 in /webui/frontend (#459)

Bumps [@vue/cli-service](https://github.com/vuejs/vue-cli/tree/HEAD/packages/@vue/cli-service) from 4.5.17 to 5.0.8.
- [Release notes](https://github.com/vuejs/vue-cli/releases)
- [Changelog](https://github.com/vuejs/vue-cli/blob/dev/CHANGELOG.md)
- [Commits](https://github.com/vuejs/vue-cli/commits/v5.0.8/packages/@vue/cli-service)

---
updated-dependencies:
- dependency-name: "@vue/cli-service"
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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

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

webui/frontend/package.json

@@ -26,7 +26,7 @@
     "@vue/cli-plugin-babel": "~5.0.8",
     "@vue/cli-plugin-eslint": "~5.0.6",
     "@vue/cli-plugin-typescript": "~5.0.8",
-    "@vue/cli-service": "~4.5.15",
+    "@vue/cli-service": "~5.0.8",
     "@vue/eslint-config-typescript": "^5.0.2",
     "babel-eslint": "^10.1.0",
     "bootstrap": "^4.6.0",