Bump loader-utils and @vue/cli-service

Bumps [loader-utils](https://github.com/webpack/loader-utils) to 1.4.2 and updates ancestor dependency @vue/cli-service. These dependencies need to be updated together.


Updates `loader-utils` from 1.1.0 to 1.4.2
- [Release notes](https://github.com/webpack/loader-utils/releases)
- [Changelog](https://github.com/webpack/loader-utils/blob/v1.4.2/CHANGELOG.md)
- [Commits](https://github.com/webpack/loader-utils/compare/v1.1.0...v1.4.2)

Updates `@vue/cli-service` from 3.12.1 to 5.0.8

---
updated-dependencies:
- dependency-name: loader-utils
  dependency-type: indirect
- dependency-name: "@vue/cli-service"
  dependency-type: direct:development
...

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

package.json

@@ -16,7 +16,7 @@
   "devDependencies": {
     "@vue/cli-plugin-babel": "^3.1.1",
     "@vue/cli-plugin-eslint": "^3.1.5",
-    "@vue/cli-service": "^3.12.1",
+    "@vue/cli-service": "^5.0.8",
     "@vue/eslint-config-standard": "^4.0.0",
     "babel-eslint": "^10.0.1",
     "eslint": "^5.8.0",