chore(deps): bump minitest from 5.23.0 to 5.23.1

Bumps [minitest](https://github.com/minitest/minitest) from 5.23.0 to 5.23.1.
- [Changelog](https://github.com/minitest/minitest/blob/master/History.rdoc)
- [Commits](minitest/minitest@v5.23.0...v5.23.1)

---
updated-dependencies:
- dependency-name: minitest
  dependency-type: indirect
  update-type: version-update:semver-patch
...

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

Gemfile.lock

@@ -173,7 +173,7 @@ GEM
     matrix (0.4.2)
     mini_mime (1.1.5)
     mini_portile2 (2.8.6)
-    minitest (5.23.0)
+    minitest (5.23.1)
     minitest-ci (3.4.0)
       minitest (>= 5.0.6)
     mono_logger (1.1.2)