chore(deps-dev): bump @vue/cli-service from 4.5.15 to 5.0.8

Bumps [@vue/cli-service](https://github.com/vuejs/vue-cli/tree/HEAD/packages/@vue/cli-service) from 4.5.15 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] <[email protected]>

package.json

@@ -34,7 +34,7 @@
     "@vue/cli-plugin-babel": "~5.0.8",
     "@vue/cli-plugin-eslint": "~4.5.19",
     "@vue/cli-plugin-unit-jest": "^4.5.19",
-    "@vue/cli-service": "~4.5.15",
+    "@vue/cli-service": "~5.0.8",
     "@vue/compiler-sfc": "^3.2.32",
     "@vue/test-utils": "^2.2.3",
     "babel-eslint": "^10.1.0",