Update typing for setuptools

The inspiration for this change was the following warning from `poetry`:

    Warning: The locked version 0.1.3 for types-pkg-resources is a yanked
    version. Reason for being yanked: Use types-setuptools instead

Following that, adding `types-setuptools` allowed the removal of some
`type: ignore` comments, which then lead to a single issue needing to be
fixed:

    tests/unit/test_setuptools_command.py:8: error: Argument 1 to "ISortCommand" has incompatible type "distutils.dist.Distribution"; expected "setuptools.dist.Distribution"  [arg-type]

Co-authored-by: Matthew Hughes <[email protected]>

isort/setuptools_commands.py

@@ -4,13 +4,13 @@
 from typing import Any, Dict, Iterator, List
 from warnings import warn
 
-import setuptools  # type: ignore
+import setuptools
 
 from . import api
 from .settings import DEFAULT_CONFIG
 
 
-class ISortCommand(setuptools.Command):  # type: ignore
+class ISortCommand(setuptools.Command):
     """The :class:`ISortCommand` class is used by setuptools to perform
     imports checks on registered modules.
     """

pyproject.toml

@@ -80,7 +80,7 @@ mypy-extensions = ">=0.4.3"
 pre-commit = ">=2.13.0"
 pytest-benchmark = ">=3.4.1"
 toml = ">=0.10.2"
-types-pkg-resources = ">=0.1.2"
+types-setuptools = ">=70.0.0.20240523"
 types-colorama = ">=0.4.2"
 types-toml = ">=0.1.3"
 vulture = ">=1.0"

tests/unit/test_setuptools_command.py

@@ -3,7 +3,7 @@
 
 def test_isort_command_smoke(src_dir):
     """A basic smoke test for the setuptools_commands command"""
-    from distutils.dist import Distribution
+    from setuptools.dist import Distribution
 
     command = setuptools_commands.ISortCommand(Distribution())
     command.distribution.packages = ["isort"]