build(deps): bump sorbet-runtime in /Library/Homebrew

Bumps [sorbet-runtime](https://github.com/sorbet/sorbet) from 0.5.5912 to 0.5.5913.
- [Release notes](https://github.com/sorbet/sorbet/releases)
- [Commits](https://github.com/sorbet/sorbet/commits

)

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