feat: Add data type mapping for UUID

[kinghuang]

I have a custom tap/extractor that outputs UUID identifiers with a schema Property like the following.

from singer_sdk import typing as th

th.Property(
    "id",
    th.UUIDType,
)

I want to load the data into a PostgreSQL database with the id in a column with the UUID type. This PR maps the schema string type with format uuid to the PostgreSQL uuid type.

[visch]

@kinghuang Thanks for the PR it looks great to me. Just running the tests now

[visch]

Looks like the certs in the repo are out of date causing this failure. The tests on the non SSL tests are passing fine. Created #366 we can fix those later. Merging

[kinghuang]

Thanks!