ci: update CI script

Signed-off-by: Bart Jaskulski <bjaskulski@protonmail.com>

.gitlab-ci.yml

 variables:
-  PHP_ERROR_REPORTING: E_ALL
-  COMPOSER_ALLOW_SUPERUSER: 1
-  GIT_STRATEGY: fetch
+  IS_LIBRARY: 1
 
-stages:
-  - tools
-  - tests
-
-.template: &job-test-template
-  stage: tests
-  coverage: '/^\s*Lines:\s*\d+.\d+\%/'
-
-.template: &job-test-unit-template
-  <<: *job-test-template
-  script:
-    - echo ${WPDESK_CI_VERSION}
-    - ls -l
-    - php --version
-    - cat /tmp/wordpress-develop/src/wp-includes/version.php
-    - cat /tmp/woocommerce/woocommerce.php
-    - composer update --no-progress
-    - vendor/bin/phpunit --configuration phpunit-unit.xml --coverage-text --colors=never
-
-.template: &job-test-unit-template-fast
-  <<: *job-test-unit-template
-  script:
-    - echo ${WPDESK_CI_VERSION}
-    - ls -l
-    - php --version
-    - cat /tmp/wordpress-develop/src/wp-includes/version.php
-    - cat /tmp/woocommerce/woocommerce.php
-    - composer update --no-progress
-    - vendor/bin/phpunit --configuration phpunit-unit.xml --no-coverage
-
-
-before_script:
-  - cd ${CI_PROJECT_DIR}
-
-phpmetric metrics:
-  stage: tools
-  image: wpdesknet/phpunit-woocommerce:0-0
-  allow_failure: true
-  when: manual
-  artifacts:
-    when: always
-    expire_in: 1 month
-    name: "metrics"
-    paths:
-      - ${CI_PROJECT_DIR}/phpmetric
-  script:
-    - echo ${WPDESK_CI_VERSION}
-    - composer require phpmetrics/phpmetrics
-    - composer update --no-progress
-    - php ./vendor/bin/phpmetrics --report-html=phpmetric .
-
-churn metrics:
-  stage: tools
-  image: wpdesknet/phpunit-woocommerce:0-0
-  allow_failure: true
-  when: manual
-  script:
-    - echo ${WPDESK_CI_VERSION}
-    - composer require bmitch/churn-php
-    - composer update --no-progress
-    - vendor/bin/churn run classes inc
-
-unit test lastest:
-  <<: *job-test-unit-template-fast
-  image: wpdesknet/phpunit-woocommerce:0-0
-
-integration test lastest:
-  <<: *job-test-unit-template
-  image: wpdesknet/phpunit-woocommerce:0-0
+include: 'https://gitlab.wpdesk.dev/wpdesk/gitlab-ci/raw/master/gitlab-ci-1.2.yml'