Creating Iceberg table with decimal column is not supported

[alsugiliazova]

Describe the bug

CREATE TABLE `ns1.table1`
(
    `decimal` Nullable(Decimal(38, 18))
)
ENGINE = Iceberg('http://minio:9000/warehouse/data2/', 'admin', 'password')

Query id: e046f280-2abb-4fa8-9e98-edb7bbb59f32


Elapsed: 0.004 sec. 

Received exception from server (version 26.5.1):
Code: 36. DB::Exception: Received from localhost:9000. DB::Exception: Unsupported type for iceberg Decimal(38, 18). (BAD_ARGUMENTS)