Bump mocha-on-bacon from 0.2.2 to 0.2.3

Bumps [mocha-on-bacon](https://github.com/alloy/mocha-on-bacon) from 0.2.2 to 0.2.3.
- [Release notes](https://github.com/alloy/mocha-on-bacon/releases)
- [Commits](alloy/mocha-on-bacon@0.2.2...0.2.3)

---
updated-dependencies:
- dependency-name: mocha-on-bacon
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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

Gemfile.lock

@@ -70,14 +70,12 @@ GEM
  rb-fsevent (>= 0.9.3)
  rb-inotify (>= 0.9)
  rb-kqueue (>= 0.2)
- metaclass (0.0.4)
  method_source (1.0.0)
  mini_mime (1.1.2)
  mini_portile2 (2.8.0)
  minitest (5.15.0)
- mocha (1.1.0)
- metaclass (~> 0.0.1)
- mocha-on-bacon (0.2.2)
+ mocha (1.13.0)
+ mocha-on-bacon (0.2.3)
  mocha (>= 0.13.0)
  multi_json (1.15.0)
  mustermann (1.1.1)