feat: migrate from setup.py/setuptools to pyproject.toml/hatch

[Danyal-Faheem]

• migrate from setup.py and setuptools to pyproject.toml and hatch as part of https://peps.python.org/pep-0621/
• completes tutor-cairn action item from [Epic] Migrate from setup.py/setuptools to pyproject.toml/hatch tutor#1190

[DawoudSheraz]

do we need pylint and black here? I don't see them in setup.py.

[Danyal-Faheem]

These were added so that the command make test works as expected to run normal tests since it requires both pylint and black. Previously, one had to install these themselves when working with cairn codebase.

[DawoudSheraz]

@Danyal-Faheem Let's merge this unless you need additional eyes on this. Thanks