fix: use ^11|^12 for phpunit to support PHP 8.2

PHPUnit 12 requires PHP >= 8.3, but packages support PHP >= 8.2.
Using ^11|^12 allows composer install on both PHP 8.2 and 8.3+.

Author: zajca

composer.json

@@ -37,7 +37,7 @@
 	},
 	"require-dev": {
 		"ext-curl": "*",
-		"phpunit/phpunit": "^12"
+		"phpunit/phpunit": "^11|^12"
 	},
 	"scripts": {
 		"tests": "phpunit --testsuite=unit",