[FIX] .travis.yml: Correct version

Author: pedrobaeza

.travis.yml

@@ -17,7 +17,7 @@ python:
 
 env:
   global:
-  - VERSION="8.0" TESTS="0" LINT_CHECK="0" TRANSIFEX="0"
+  - VERSION="9.0" TESTS="0" LINT_CHECK="0" TRANSIFEX="0"
   - TRANSIFEX_USER='transbot@odoo-community.org'
   - secure: hK2mRXUaQYPkWzXlmU2ClrqkgiaLkLdfymJdOt5b0nLtiNirK6gT+jqt5z8mpAXYHn9RFu6PiDnb7D+pYFtBvj9965aPGx7iuw2Y+8LrwVv1EZbM3zy+A8tHoCfo6axaCKG28E++hr2V53lw2qZMNojKr9vbdnlcfyaNQaXP4hs=
   matrix: