Update travis api key
Update travis api key

heroku/heroku-buildpack-java,wishtack/heroku-buildpack-java,heroku/heroku-buildpack-java,Scalingo/java-buildpack,JIoJIaJIu/heroku-buildpack-java,JIoJIaJIu/heroku-buildpack-java,wishtack/heroku-buildpack-java,Scalingo/java-buildpack