Update composer.json to restrict symfony/var-dumper version to 5.4 and above, ensuring compatibility with existing dependencies.

Author: iazaran

composer.json

@@ -43,7 +43,7 @@
         "phpunit/phpunit": "^9.0|^10.0|^11.0",
         "orchestra/testbench": "^6.0||^7.0||^8.0||^9.0||^10.0",
         "mockery/mockery": "^1.5",
-        "symfony/var-dumper": "^6.0|^7.0"
+        "symfony/var-dumper": "^5.4|^6.0|^7.0"
     },
     "autoload": {
         "psr-4": {