.travis.yml in zeebe-client-0.1.0 vs .travis.yml in zeebe-client-0.2.0

@@ -1,7 +1,12 @@
 ---
-sudo: false
 language: ruby
 rvm:
   - 2.5
   - 2.4
   - 2.3
+
+services:
+  - docker
+
+script:
+  - bundle exec rake travis