Enable bundler caching for travis

Taher-Ghaleb · web-flow · commit 551c0b8844cf · 2021-03-09T00:26:34.000-05:00
diff --git a/.travis.yml b/.travis.yml
@@ -26,6 +26,8 @@ services:
 env:
   - INTEGRATION=openldap
 
+cache: bundler
+
 before_install:
   - gem update bundler
 
