Bump minitest-reporters from 1.3.6 to 1.3.8 (#6135)

Bumps [minitest-reporters](https://github.com/CapnKernul/minitest-reporters) from 1.3.6 to 1.3.8.
- [Release notes](https://github.com/CapnKernul/minitest-reporters/releases)
- [Changelog](https://github.com/kern/minitest-reporters/blob/master/CHANGELOG.md)
- [Commits](minitest-reporters/minitest-reporters@v1.3.6...v1.3.8)

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

Gemfile

@@ -106,7 +106,7 @@ group :test, :development do
   gem 'jasmine-jquery-rails'
   gem 'jasmine-rails'
   gem 'json_expressions'
-  gem 'minitest-reporters', '~> 1.3.6'
+  gem 'minitest-reporters', '~> 1.3.8'
   gem 'openssl', '~> 2.1.2'
   gem 'phantomjs'
   gem 'puma', '~> 4.1'

Gemfile.lock

@@ -268,7 +268,7 @@ GEM
     mini_mime (1.0.2)
     mini_portile2 (2.4.0)
     minitest (5.11.3)
-    minitest-reporters (1.3.6)
+    minitest-reporters (1.3.8)
       ansi
       builder
       minitest (>= 5.0)
@@ -598,7 +598,7 @@ DEPENDENCIES
   letter_opener
   listen (~> 3.1.5)
   mailman
-  minitest-reporters (~> 1.3.6)
+  minitest-reporters (~> 1.3.8)
   mocha (~> 1.9)
   mustermann (= 1.0.3)
   mysql2 (>= 0.4.4)