[Enhancement]: detecting unnecessary casting

[jamesbraza]

Overview

Check this snippet, there is an unnecessary int cast inside:

import math

assert isinstance(math.ceil(5.5), int)
assert isinstance(int(math.ceil(5.5)), int)  # Extra int cast

As of refurb==1.28.0, it doesn't flag anything in this snippet.

Proposal

I propose a new rule to refurb: detecting unnecessary casting (e.g. unnecessary int or str casts). It could be named redundant-cast.

pylint==3.0.3, ruff==0.2.0, and flake8-simplify==0.21.0 don't flag this at the moment either.