symfony version update

Author: Fredrick Peter

composer.json

@@ -20,10 +20,10 @@
         "psr/log": "^1.0 || ^1.1.4",
         "vlucas/phpdotenv": "^5.3",
         "filp/whoops": "^2.15",
-        "symfony/var-dumper": "5.4.3"
+        "symfony/var-dumper": "^5.4.3"
     },
     "conflict": {
-        "symfony/var-dumper": "^5.4.4 || ^6.0"
+        "symfony/var-dumper": ">=6.0.0"
     },
     "autoload": {
         "files": [
@@ -39,11 +39,6 @@
             "builder\\Database\\Tests\\": "tests/"
         }
     },
-    "extra": {
-        "branch-alias": {
-            "dev-main": "4.3.0-dev"
-        }
-    },
     "minimum-stability": "stable",
     "prefer-stable": true
 }