Update composer.json

Author: Doctorrr

composer.json

@@ -4,7 +4,7 @@
   "type": "package",
   "keywords": ["payments", "processing"],
   "require": {
-    "php": ">=7.4.0",
+    "php": ">=8.1.0",
     "ext-json": "*",
     "ext-curl": "*",
     "ext-mbstring": "*"