Use stable CakePHP 5.1

Author: ADmad

composer.json

@@ -31,7 +31,7 @@
         "psr/http-server-middleware": "^1.0"
     },
     "require-dev": {
-        "cakephp/cakephp": "dev-5.next as 5.1.0",
+        "cakephp/cakephp": "^5.1.0",
         "cakephp/cakephp-codesniffer": "^5.0",
         "firebase/php-jwt": "^6.2",
         "phpunit/phpunit": "^10.5.5 || ^11.1.3"