Fix error in releasing when dummy mode is on

core/clients/platforms/agora.py

@@ -24,7 +24,7 @@ class AgoraClient(LocalPlatformClient, BaseClient):
         print("CALLING RELEASE FUNDS", contact_id)
         if self.instance.dummy:
             log.error(f"Running in dummy mode, not releasing funds for {contact_id}")
-            return
+            return {"message": "OK"}  # Pretend to succeed
 
         rtrn = await self.api.contact_release(
             contact_id,