update ruby version for travis CI (#556)

auman66 · web-flow · commit 8fb985323040 · 2020-11-13T20:58:09.000+03:00
diff --git a/.travis.yml b/.travis.yml
@@ -3,7 +3,7 @@ sudo: required
 dist: xenial
 language: ruby
 rvm:
-  - 2.4
+  - 2.7
 python:
   - "2.7"
 
