Update native.py: use dict instead of Dict

[wyattscarpenter]

The capital letter version from typing has been deprecated since Python 3.9 https://docs.python.org/3/library/typing.html#typing.Dict

What type of PR is this?

• Refactor

How is this tested?

Type check in the CI

[amarvin]

This package is supposed to still support Python 3.8 though.

[wyattscarpenter]

@amarvin Thanks for mentioning! That claim conflicts with the readme. https://github.com/databricks/databricks-sql-python?tab=readme-ov-file#requirements

Requirements
Python 3.9 or above is required.

However, it does seem to match the information given on https://pypi.org/project/databricks-sql-connector/, which is a release from today.

Requires: Python <4.0.0, >=3.8.0

I'm happy to draft this PR if we really do support 3.8 here. Easy to change the readme if so... or change the other requirement if not.

Also, no unit tests run on 3.8. If 3.8 is supported, they probably should.

Also, while someone is looking into it, it's arguably wrong to specify Python <4.0.0. There's a whole thread about it somewhere. You can just leave that off.