chore: update minimum PHP requirement to 8.4

Update the project's minimum PHP version requirement from 8.3 to 8.4 to align with the latest development standards and ensure compatibility with newer PHP features and security updates.

Author: alex-render

composer.json

@@ -4,7 +4,7 @@
     "type": "library",
     "license": "AGPL-3.0-or-later",
     "require": {
-        "php": ">=8.3"
+        "php": ">=8.4"
     },
     "require-dev": {
         "phpstan/phpstan": "^1.12",