Updated Travis CI config to update Symfony CLI without confirmation
Updated Travis CI config to update Symfony CLI without confirmation

symfony/symfony-demo,symfony/symfony-demo,javiereguiluz/symfony-demo,TomasVotruba/symfony-demo,javiereguiluz/symfony-demo,bocharsky-bw/symfony-demo,voronkovich/symfony-demo,symfony/symfony-demo,voronkovich/symfony-demo,voronkovich/symfony-demo,TomasVotruba/symfony-demo,bocharsky-bw/symfony-demo,TomasVotruba/symfony-demo,bocharsky-bw/symfony-demo,javiereguiluz/symfony-demo