Run tests against 2.6.0 (#4070)

ref https://www.ruby-lang.org/en/news/2018/12/25/ruby-2-6-0-released/
sidekiq · Jan 6, 2019 · 9c825f4 · 9c825f4
1 parent be28fc6
commit 9c825f4
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/.travis.yml b/.travis.yml
@@ -14,4 +14,5 @@ rvm:
   - 2.3.7
   - 2.4.4
   - 2.5.1
+  - 2.6.0
   - jruby