Use ruby 2.5.7 in CI

sduquej · sduquej · commit 5be2c308e309 · 2020-02-06T09:47:29.000-08:00
diff --git a/.circleci/config.yml b/.circleci/config.yml
@@ -2,7 +2,7 @@ version: 2
 jobs:
   build:
     docker:
-      - image: circleci/ruby:2.4.6
+      - image: circleci/ruby:2.5.7
 
     working_directory: ~/intercom-rails
 
