[composer] Set dependencies for 4.6.0-beta3 release.

composer.json

@@ -38,7 +38,7 @@
         "symfony/expression-language": "^5.3.0",
         "symfony/validator": "^5.3.0",
         "symfony/var-dumper": "^5.3.0",
-        "ibexa/doctrine-schema": "~4.6.0@dev",
+        "ibexa/doctrine-schema": "~4.6.0@beta",
         "symfony-cmf/routing": "^2.3",
         "guzzlehttp/guzzle": "^6.5",
         "php-http/guzzle6-adapter": "^2.0",
@@ -65,7 +65,7 @@
         "behat/behat": "^3.6.1",
         "jenner/simple_fork": "^1.2",
         "friends-of-behat/mink-extension": "^2.4",
-        "ibexa/ci-scripts": "^0.2@dev",
+        "ibexa/ci-scripts": "^0.2@beta",
         "ibexa/code-style": "^1.0",
         "phpunit/phpunit": "^8.2",
         "matthiasnoback/symfony-dependency-injection-test": "^4.1",
@@ -164,4 +164,4 @@
             "url": "https://github.com/ezsystems/ezplatform"
         }
     }
-}
+}