Bump minitest from 5.14.1 to 5.14.2 (#1749)

Bumps [minitest](https://github.com/seattlerb/minitest) from 5.14.1 to 5.14.2.
- [Release notes](https://github.com/seattlerb/minitest/releases)
- [Changelog](https://github.com/seattlerb/minitest/blob/master/History.rdoc)
- [Commits](https://github.com/seattlerb/minitest/compare/v5.14.1...v5.14.2)

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

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Gemfile.lock

@@ -142,7 +142,7 @@ GEM
     memoist (0.16.2)
     middleware (0.1.0)
     mini_mime (1.0.2)
-    minitest (5.14.1)
+    minitest (5.14.2)
     molinillo (0.6.6)
     multi_json (1.15.0)
     multi_test (0.1.2)