Merge pull request #44 from robert-stanciu/patch-4

Fix parameter type

Author: ciungulete

src/Responses/Info/RetrieveResponseGeneralData.php

@@ -18,7 +18,7 @@ private function __construct(
         public readonly string $document,
         public readonly string $registrationStatus,
         public readonly string $registrationDate,
-        public readonly string $activityCode,
+        public readonly ?string $activityCode,
         public readonly string $bankAccount,
         public readonly bool $roInvoiceStatus,
         public readonly string $authorityName,