[composer] Set dependencies for 4.0.0-beta2 release.

composer.json

@@ -19,11 +19,11 @@
     "require": {
         "php": "^7.3",
         "ext-json": "*",
-        "ezsystems/ezplatform-admin-ui": "^4.0@dev",
-        "ezsystems/ezplatform-content-forms": "^4.0@dev",
-        "ezsystems/ezplatform-graphql": "^4.0@dev",
-        "ezsystems/ezplatform-rest": "^4.0@dev",
-        "ezsystems/ezplatform-kernel": "^4.0@dev",
+        "ezsystems/ezplatform-admin-ui": "^4.0",
+        "ezsystems/ezplatform-content-forms": "^4.0",
+        "ezsystems/ezplatform-graphql": "^4.0",
+        "ezsystems/ezplatform-rest": "^4.0",
+        "ezsystems/ezplatform-kernel": "^4.0",
         "symfony/dependency-injection": "^5.0",
         "symfony/expression-language": "^5.0",
         "symfony/event-dispatcher": "^5.0",
@@ -48,12 +48,12 @@
         }
     },
     "require-dev": {
-        "ezsystems/doctrine-dbal-schema": "^4.0@dev",
-        "ezsystems/ezplatform-design-engine": "^4.0@dev",
-        "ezsystems/ezplatform-richtext": "^4.0@dev",
-        "ezsystems/ezplatform-search": "^4.0@dev",
-        "ezsystems/ezplatform-user": "^4.0@dev",
-        "ezsystems/ezplatform-http-cache": "^4.0@dev",
+        "ezsystems/doctrine-dbal-schema": "^4.0",
+        "ezsystems/ezplatform-design-engine": "^4.0",
+        "ezsystems/ezplatform-richtext": "^4.0",
+        "ezsystems/ezplatform-search": "^4.0",
+        "ezsystems/ezplatform-user": "^4.0",
+        "ezsystems/ezplatform-http-cache": "^4.0",
         "phpspec/phpspec": "^6.0",
         "ezsystems/ezplatform-code-style": "^0.1.0",
         "friendsofphp/php-cs-fixer": "^2.16.0"