Add support for timestamp type in DuckDB connector

[RaulRoPer]

Attempting to create tables in duckdb with the timestamp data type fails.

[Igor-Chernenko]

Hello,

If this issue is still available my university group would like to implement this feature for our software engineering course project. Is it alright if I get assigned this issue so we can secure it as our active task? They will all sign the CLA. Thank you.