Bump apps/shinycms-ruby from `fcea812` to `642c154`
Bump apps/shinycms-ruby from `fcea812` to `642c154`

Bumps [apps/shinycms-ruby](https://github.com/denny/ShinyCMS-ruby) from `fcea812` to `642c154`.
- [Release notes](https://github.com/denny/ShinyCMS-ruby/releases)
- [Commits](https://github.com/denny/ShinyCMS-ruby/compare/fcea8122c07bfd1962f17880fdbc8ba0425416ab...642c154d4b47d4f9f0549784cd4c187e1a963efc)

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