Update php-debugbar requirement to version ^2

Author: barryvdh

composer.json

@@ -18,7 +18,7 @@
     ],
     "require": {
         "php": "^8.1",
-        "php-debugbar/php-debugbar": "^2|^3",
+        "php-debugbar/php-debugbar": "^2",
         "twig/twig": "^3.22"
     },
     "require-dev": {