Allow using library with Symfony 6.4 LTS (#3)

Co-authored-by: Alexander Grimalovsky <[email protected]>

Author: olivervogel

composer.json

@@ -23,7 +23,7 @@
     "require": {
         "php": "^8.1",
         "intervention/image": "^3.5",
-        "symfony/framework-bundle": "^7"
+        "symfony/framework-bundle": "^6.4|^7"
     },
     "autoload": {
         "psr-4": {