Allow Symfony 6

Author: derrabus

composer.json

@@ -17,12 +17,12 @@
     ],
     "require": {
         "php": ">=7.2.5",
-        "symfony/options-resolver": "^4.4|^5.0",
+        "symfony/options-resolver": "^4.4|^5.0|^6.0",
         "symfony/polyfill-php80": "^1.15",
         "ext-ldap": "*"
     },
     "require-dev": {
-        "symfony/security-core": "^5.3"
+        "symfony/security-core": "^5.3|^6.0"
     },
     "conflict": {
         "symfony/options-resolver": "<4.4",