.travis.yml in mistral_client-2.0.0 vs .travis.yml in mistral_client-3.0.0

@@ -1,12 +1,7 @@
 language: ruby
 cache: bundler
 rvm:
-  - 2.5.8
-  - 2.6.6
-  - 2.7.2
-  - 3.0.0
+  - 3.1.4
+  - 3.2.2
 before_install:
   - gem install bundler
-branches:
-  only:
-    - master