fix wallet

Author: giancarloromeo

packages/models-library/src/models_library/api_schemas_webserver/wallets.py

@@ -22,6 +22,10 @@ class WalletGet(OutputSchema):
     created: datetime
     modified: datetime
 
+    model_config = ConfigDict(
+        frozen=False,
+    )
+
 
 class WalletGetWithAvailableCredits(WalletGet):
     available_credits: Decimal