.travis.yml in fishplate-1.1.1 vs .travis.yml in fishplate-1.1.2

@@ -3,9 +3,10 @@
 language: ruby
 cache: bundler
 rvm:
   - 2.6
   - 2.7
+  - 3.0
 before_install: gem install bundler
 script:
   - bundle exec rake spec
   - bundle exec rake rubocop