Refactor return type of deviceByUuid API method in devices_api.dart

lib/services/api/devices_api.dart

@@ -190,7 +190,7 @@ class DevicesAPI {
         path: ApiEndpoints.deviceByUuid.replaceAll('{deviceUuid}', deviceId),
         showServerMessage: false,
         expectedResponseModel: (json) {
-          return json['data'];
+          return json['data'] as Map<String, dynamic>;
         });
     return response;
   }