fix phpunit job

.gitlab-ci.yml

@@ -20,7 +20,11 @@ phpunit:
     - echo zend_extension=xdebug.so > /etc/php*/conf.d/51_xdebug.ini
     - echo xdebug.mode=coverage >> /etc/php*/conf.d/51_xdebug.ini
   script:
-    - php -dzend_extension=phpbin/phpunit -c phpunit.xml --color=always --coverage-text --coverage-clover=build/logs/clover.xml
+    - |
+      php -dzend_extension=xdebug.so -dxdebug.mode=coverage 
+        bin/phpunit -c phpunit.xml --color=always 
+          --coverage-text 
+          --coverage-clover=build/logs/clover.xml
 
 packagist:
   stage: publish