Add support for migrating tinyint and smallint in Iceberg migrate procedure

[marcinsbd]

trino version: 413

hive connector:

trino:tpch> show create table tb1;
         Create Table
------------------------------
 CREATE TABLE hive.tpch.tb1 (
    x tinyint
 )
 WITH (
    format = 'ORC'
 )
(1 row)

iceberg connector:

trino:tpch> call iceberg.system.migrate('tpch', 'tb1');
Query 20230618_235845_00037_3a9py failed: Type not supported for Iceberg: tinyint

hive connector:

trino:tpch> show create table tb2;
         Create Table
------------------------------
 CREATE TABLE hive.tpch.tb2 (
    x smallint
 )
 WITH (
    format = 'ORC'
 )
(1 row)

iceberg connector:

Query 20230619_000254_00002_3a9py failed: Type not supported for Iceberg: smallint```