Update composer.json

Author: Fenguoz

composer.json

@@ -20,7 +20,7 @@
     "require": {
         "php": ">=8.0",
         "fenguoz/data-types": "^1.0",
-        "guzzlehttp/guzzle": ">=7.2",
+        "guzzlehttp/guzzle": "^7.2 || ^8.0",
         "web3p/web3.php": "^1.0",
         "kornrunner/secp256k1": "^0.2",
         "simplito/elliptic-php": "^1.0",