'Not supported error' on TIMESTAMP_NTZ

For tables defined with timestamp_ntz data types, the current version of uc_catalog fails with the below on 'show all tables':

**Not implemented Error:
Tried to fallback to unknown type for 'timestamp_ntz'**

You can select data from tables without that data type.

The fix I used that works is in uc_utils.cpp and adding timestamp_ntz to the timestamp check:

**else if (type_text == "timestamp" || type_text == "timestamp_ntz") {
return LogicalType::TIMESTAMP_TZ;**

This is unlikely to be the best solution, obviously, but wasn't sure if that needed to reach further back into duckdb itself.

A data set to use when reproducing or checking is the NYC taxi data as it has this data type in its schema.