require types-setuptools>=75.2.0

this is necessary to have python/typeshed#12791

Author: Yay295

.ci/requirements-mypy.txt

@@ -9,4 +9,4 @@ sphinx
 types-atheris
 types-defusedxml
 types-olefile
-types-setuptools
+types-setuptools>=75.2.0

setup.py

@@ -16,10 +16,12 @@
 import sys
 import warnings
 from collections.abc import Iterator
-from typing import Any
+from typing import Any, TYPE_CHECKING
 
 from setuptools import Extension, setup
 from setuptools.command.build_ext import build_ext
+if TYPE_CHECKING:
+    from setuptools import _BuildInfo
 
 
 def get_version() -> str:
@@ -1001,7 +1003,7 @@ def debug_build() -> bool:
     return hasattr(sys, "gettotalrefcount") or FUZZING_BUILD
 
 
-libraries = [
+libraries: list[tuple[str, _BuildInfo]] = [
     ("pil_imaging_mode", {"sources": ["src/libImaging/Mode.c"]}),
 ]