Bump minitest-reporters from 1.5.0 to 1.6.0

Bumps [minitest-reporters](https://github.com/CapnKernul/minitest-reporters) from 1.5.0 to 1.6.0.
- [Release notes](https://github.com/CapnKernul/minitest-reporters/releases)
- [Changelog](https://github.com/minitest-reporters/minitest-reporters/blob/master/CHANGELOG.md)
- [Commits](minitest-reporters/minitest-reporters@v1.5.0...v1.6.0)

---
updated-dependencies:
- dependency-name: minitest-reporters
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

Gemfile.lock

@@ -199,7 +199,7 @@ GEM
     mini_mime (1.1.2)
     mini_portile2 (2.8.1)
     minitest (5.17.0)
-    minitest-reporters (1.5.0)
+    minitest-reporters (1.6.0)
       ansi
       builder
       minitest (>= 5.0)