.travis.yml in webmention-cli-0.1.1 vs .travis.yml in webmention-cli-1.0.0

@@ -1,20 +1,15 @@
+dist: bionic
 language: ruby
 rvm:
-  - 2.4.5
-  - 2.5.3
-  - 2.6.0
-cache:
-  - bundler
-before_install:
-  - gem install bundler -v '~> 1.17'
+  - 2.5
+  - 2.6
+  - 2.7
+cache: bundler
 before_script:
   - curl -L https://codeclimate.com/downloads/test-reporter/test-reporter-latest-linux-amd64 > ./cc-test-reporter
   - chmod +x ./cc-test-reporter
   - ./cc-test-reporter before-build
-script:
-  - bundle exec rubocop
-  - bundle exec rake
 after_script:
   - ./cc-test-reporter after-build --exit-code $TRAVIS_TEST_RESULT
 notifications:
   email: false
   slack: