ci: composer require micheh/phpcs-gitlab globally

.gitlab-ci.yml

@@ -6,8 +6,8 @@ phpcs:
   image: composer:2
   stage: test
   script:
-  - composer require --dev micheh/phpcs-gitlab
-  - vendor/bin/phpcs --report=full --report-\\Micheh\\PhpCodeSniffer\\Report\\Gitlab=phpcs-quality-report.json
+  - composer global require micheh/phpcs-gitlab
+  - phpcs --report=full --report-\\Micheh\\PhpCodeSniffer\\Report\\Gitlab=phpcs-quality-report.json
   artifacts:
     reports:
       codequality: phpcs-quality-report.json