Add Symfony Deprecations Helper to Gitlab CI configuration

The Gitlab CI configuration for the Chill Project has been updated to include the Symfony Deprecations Helper setting. This addition helps to avoid direct deprecations and provide a more efficient testing process. The helper is integrated using Symfony's PHPUnit bridge.

.gitlab-ci.yml

@@ -34,6 +34,8 @@ variables:
     DEFAULT_CARRIER_CODE: BE
     # force a timezone
     TZ: Europe/Brussels
+    # avoid direct deprecations (using symfony phpunit bridge: https://symfony.com/doc/4.x/components/phpunit_bridge.html#internal-deprecations
+    SYMFONY_DEPRECATIONS_HELPER: max[total]=99999999&max[self]=0&max[direct]=0&verbose=0
 
 stages:
     - Composer install