Bump json5, @vue/cli-plugin-unit-jest and @vue/cli-service in /frontend

Bumps [json5](https://github.com/json5/json5) to 2.2.3 and updates ancestor dependencies [json5](https://github.com/json5/json5), @vue/cli-plugin-unit-jest and @vue/cli-service. These dependencies need to be updated together.


Updates `json5` from 2.2.1 to 2.2.3
- [Release notes](https://github.com/json5/json5/releases)
- [Changelog](https://github.com/json5/json5/blob/main/CHANGELOG.md)
- [Commits](json5/json5@v2.2.1...v2.2.3)

Updates `json5` from 1.0.1 to 2.2.3
- [Release notes](https://github.com/json5/json5/releases)
- [Changelog](https://github.com/json5/json5/blob/main/CHANGELOG.md)
- [Commits](json5/json5@v2.2.1...v2.2.3)

Updates `@vue/cli-plugin-unit-jest` from 4.5.13 to 5.0.8

Updates `@vue/cli-service` from 4.5.13 to 5.0.8

---
updated-dependencies:
- dependency-name: json5
  dependency-type: indirect
- dependency-name: json5
  dependency-type: indirect
- dependency-name: "@vue/cli-plugin-unit-jest"
  dependency-type: direct:development
- dependency-name: "@vue/cli-service"
  dependency-type: direct:development
...

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