Fixed composer.json symfony allowed version

Author: yann-eugone

composer.json

@@ -11,7 +11,7 @@
     "require": {
         "php": "^7.1.3",
         "ext-openssl": "*",
-        "symfony/framework-bundle": "^4.4",
+        "symfony/framework-bundle": "^4.4|^5.0",
         "doctrine/orm": "^2.7",
         "doctrine/doctrine-bundle": "^2.0",
         "yokai/dependency-injection": "^1.0"