Enable bundler caching for travis (ctran#853)

Taher-Ghaleb · ocarta-l · commit a40a459a3724 · 2021-06-18T13:08:30.000+02:00
diff --git a/.travis.yml b/.travis.yml
@@ -7,6 +7,8 @@ rvm:
 env:
   - RAILS_ENV=development RACK_ENV=development INTEGRATION_TESTS=1
 
+cache: bundler
+
 addons:
   apt_packages:
     - libsqlite3-dev
