Fix .travis.yml

Author: woiwa

.travis.yml

@@ -11,8 +11,8 @@ matrix:
     - php: 5.6
 
 before_script:
-  - sudo apt-get install -y -qq libssh2-1-dev libssh2-php
   - sudo apt-get update -qq
+  - sudo apt-get install -y -qq libssh2-1-dev libssh2-php
   - pecl install -f ssh2-beta < .noninteractive
   - php -m | grep ssh2
   - composer self-update