Bump ruby/setup-ruby from 1.103.0 to 1.104.0
Bump ruby/setup-ruby from 1.103.0 to 1.104.0

Bumps [ruby/setup-ruby](https://github.com/ruby/setup-ruby) from 1.103.0 to 1.104.0.
- [Release notes](https://github.com/ruby/setup-ruby/releases)
- [Commits](https://github.com/ruby/setup-ruby/compare/eb938a806ed6dbfb36293b94ccb2afaf2d590c92...e404913b054b478c35ac2a0980a8fabc864cf6f6)

---
updated-dependencies:
- dependency-name: ruby/setup-ruby
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@github.com>
araneforseti/api-tester,araneforseti/api-tester