updated generated composer.json example

Author: guilhermednt

example/gen/composer.json

@@ -11,6 +11,7 @@
     "require": {
         "php": ">=7.4",
         "docler-labs/api-client-exception": "^1.0",
+        "ext-intl": "*",
         "guzzlehttp/psr7": "^1.6",
         "pimple/pimple": "^3.3",
         "psr/container": "^1.0",