Eliminated php 8+ core dependency ext-json

Author: NicolaeIotu

admin/framework/composer.json

@@ -12,7 +12,6 @@
     "require": {
         "php": "^8.1",
         "ext-intl": "*",
-        "ext-json": "*",
         "ext-mbstring": "*",
         "laminas/laminas-escaper": "^2.13",
         "psr/log": "^2.0"