Bump latest ruby version tested in CI

dylanahsmith · dylanahsmith · commit ecf2c11d8911 · 2020-02-04T13:16:07.000-05:00
diff --git a/.travis.yml b/.travis.yml
@@ -3,6 +3,6 @@ sudo: false
 language: ruby
 cache: bundler
 rvm:
-  - 2.4.9
-  - 2.6.5
+  - 2.4.9 # minimum supported
+  - 2.7.0 # latest released
 before_install: gem install bundler -v 1.17.3
