Bump apps/on_ruby from `3f70cdc` to `cc84278`
Bump apps/on_ruby from `3f70cdc` to `cc84278`

Bumps [apps/on_ruby](https://github.com/phoet/on_ruby) from `3f70cdc` to `cc84278`.
- [Release notes](https://github.com/phoet/on_ruby/releases)
- [Commits](https://github.com/phoet/on_ruby/compare/3f70cdcdf8322d98356bf17feb96a73b81f9fd6e...cc842785827f42c586199b06659690f4bdccb6c2)

Signed-off-by: dependabot-preview[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@dependabot.com>
eliotsykes/real-world-rails