Update .gitlab-ci.yml

.gitlab-ci.yml

@@ -1,11 +1,14 @@
+image: php:7.2
+
+cache:
+  paths:
+  - vendor/
+
 before_script:
- - apt-get update -qq && apt-get install -y -qq sshpass
- - apt-get install zip unzip
- - php -r "copy('https://getcomposer.org/installer', 'composer-setup.php');"
- - php composer-setup.php
- - php -r "unlink('composer-setup.php');"
- - php composer.phar install
- - npm install
+- apt-get update -qq && apt-get install -y -qq sshpass
+- apt-get install git -yqq
+- curl -sS https://getcomposer.org/installer | php
+- php composer.phar install
 
 deploy_stage:
   stage: deploy