update to symfony 6 (#26)

* update symfony

* fix symfony version

* update to symfony 6.04

* use 4,5 and 6

Author: DennisWiemann

composer.json

@@ -14,17 +14,17 @@
         }
     },
     "require-dev": {
-        "symfony/webpack-encore-bundle": "^1.8"
+        "symfony/webpack-encore-bundle": "^1.12"
     },
     "require": {
         "php": ">=7.2.5",
         "ext-json": "*",
         "doctrine/common": "^2.6|^3.0",
         "doctrine/orm": "^2.6.3",
-        "sensio/framework-extra-bundle": "^5.1",
-        "symfony/property-access": "^4.4|^5.0",
-        "symfony/security-bundle": "^4.4|^5.0",
-        "symfony/twig-bundle": "^4.4|^5.0",
-        "symfony/options-resolver": "^4.4|^5.0"
+        "sensio/framework-extra-bundle": "^5.1|^6.1",
+        "symfony/property-access": "^4.4|^5.0|^6.0",
+        "symfony/security-bundle": "^4.4|^5.0|^6.0",
+        "symfony/twig-bundle": "^4.4|^5.0|^6.0",
+        "symfony/options-resolver": "^4.4|^5.0|^6.0"
     }
 }