[composer] Set dependencies for 2.3.0 release.

composer.json

@@ -15,10 +15,10 @@
     "require": {
         "php": "^7.3",
         "ext-dom": "*",
-        "ezsystems/ezplatform-kernel": "^1.3@dev",
-        "ezsystems/ezplatform-admin-ui": "^2.0@dev",
-        "ezsystems/ezplatform-rest": "^1.2@dev",
-        "ezsystems/ezplatform-richtext": "^2.0@dev",
+        "ezsystems/ezplatform-kernel": "^1.3",
+        "ezsystems/ezplatform-admin-ui": "^2.0",
+        "ezsystems/ezplatform-rest": "^1.2",
+        "ezsystems/ezplatform-richtext": "^2.0",
         "lexik/jwt-authentication-bundle": "^2.8",
         "overblog/graphql-bundle": "^0.12",
         "erusev/parsedown": "^1.7",
@@ -32,11 +32,11 @@
         "symfony/serializer": "^5.0"
     },
     "require-dev": {
-        "ezsystems/doctrine-dbal-schema": "^1.0@dev",
-        "ezsystems/ez-support-tools": "^2.0@dev",
-        "ezsystems/ezplatform-content-forms": "^1.0@dev",
-        "ezsystems/ezplatform-design-engine": "^3.0@dev",
-        "ezsystems/ezplatform-user": "^2.0@dev",
+        "ezsystems/doctrine-dbal-schema": "^1.0",
+        "ezsystems/ez-support-tools": "^2.0",
+        "ezsystems/ezplatform-content-forms": "^1.0",
+        "ezsystems/ezplatform-design-engine": "^3.0",
+        "ezsystems/ezplatform-user": "^2.0",
         "overblog/graphiql-bundle": "^0.2",
         "phpspec/phpspec": "^6.1",
         "friendsofphp/php-cs-fixer": "^2.16.0",