Updated composer

Author: renandelmonico

composer.json

@@ -1,6 +1,8 @@
 {
     "name": "renandelmonico/value-objects",
     "description": "A library with VOs to agreggate in your projects",
+    "keywords": ["vo", "value", "objects", "object"],
+    "license": "MIT",
     "type": "library",
     "authors": [
         {
@@ -10,6 +12,7 @@
     ],
     "require": {},
     "require-dev": {
+        "php": "^8.1",
         "phpunit/phpunit": "^9.5",
         "infection/infection": "^0.26.6"
     },