Bump sorbet-runtime from 0.5.5880 to 0.5.5881 in /Library/Homebrew

Bumps [sorbet-runtime](https://github.com/sorbet/sorbet) from 0.5.5880 to 0.5.5881.
- [Release notes](https://github.com/sorbet/sorbet/releases)
- [Commits](https://github.com/sorbet/sorbet/commits

)

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

Library/Homebrew/Gemfile.lock

@@ -121,7 +121,7 @@ GEM
     simplecov-html (0.12.2)
     sorbet (0.5.5880)
       sorbet-static (= 0.5.5880)
-    sorbet-runtime (0.5.5880)
+    sorbet-runtime (0.5.5881)
     sorbet-static (0.5.5880-universal-darwin-14)
     spoom (1.0.4)
       colorize