[Composer] Dropped ibexa/ci-scripts from dev requirements (#436)

Author: alongosz

composer.json

@@ -63,7 +63,6 @@
     "require-dev": {
         "behat/behat": "^3.6.1",
         "friends-of-behat/mink-extension": "^2.4",
-        "ibexa/ci-scripts": "^0.2@dev",
         "ibexa/code-style": "~2.0.0",
         "jenner/simple_fork": "^1.2",
         "matthiasnoback/symfony-dependency-injection-test": "^4.1",