.travis.yml in params_keeper_rails-1.1.2 vs .travis.yml in params_keeper_rails-1.2.0

@@ -2,9 +2,10 @@
 rvm:
   - 2.3
   - 2.4
   - 2.5
   - 2.6
+  - 2.7
 gemfile:
   - gemfiles/rails50.gemfile
   - gemfiles/rails51.gemfile
   - gemfiles/rails52.gemfile
   - gemfiles/rails60.gemfile