.travis.yml in minitest-reporters-1.4.0.beta1 vs .travis.yml in minitest-reporters-1.4.0

@@ -2,9 +2,10 @@
 before_install:
   - gem install bundler gem uninstall -v '>= 2' -i $(rvm gemdir)@global -ax bundler || true
   - gem install bundler -v '< 2'
 rvm:
   - 2
+  - 2.6
   - 2.5
   - 2.4
   - 2.3
   - 2.2
   - 2.1