Fix TravisCI Slack notification [skip ci]

Author: gabrielboliveira

.travis.yml

@@ -13,4 +13,5 @@ script:
 notifications:
   slack:
     on_success: change
-    secure: 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
+    rooms:
+      - secure: "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"