modification test of .travis.yml

Signed-off-by: Bertty Contreras-Rojas <bertty@scalytics.io>
diff --git a/.travis.yml b/.travis.yml
index db5e5cc..2c4062e 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -23,7 +23,6 @@
 install: bundle install
 script: "./script/cibuild"
 branches:
-  only:
   - main
   - asf-site
 addons: