Allow doctrine-bundle 2 in dev requirements

This is necessary to actually install Symfony 5

Author: stof

composer.json

@@ -48,7 +48,7 @@
         "symfony/doctrine-bridge": "<4.4"
     },
     "require-dev": {
-        "doctrine/doctrine-bundle": "^1.3",
+        "doctrine/doctrine-bundle": "^1.3 || ^2",
         "friendsofphp/php-cs-fixer": "^3.0.2",
         "swiftmailer/swiftmailer": "^4.3 || ^5.0 || ^6.0",
         "symfony/console": "^4.4 || ^5.0",