Enable sudo mode for SMS sending via API

Added `sudo()` to the `send_sms` method call to ensure proper permissions when sending SMS. This prevents potential access rights issues that might arise during message processing.

deltatech_sms/models/sms_api.py

@@ -19,7 +19,7 @@ def _contact_iap(self, local_endpoint, params, timeout=15):
         for message in params["messages"]:
             res_value = {"state": "success", "res_id": message["res_id"]}
 
-            response = account.send_sms(message["number"], message["content"])
+            response = account.sudo().send_sms(message["number"], message["content"])
 
             if response["status"] != 200:
                 res_value["state"] = "server_error"